fix(core): Record client report with reason for HTTP 413 responses#19093

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
logaretm merged 3 commits into from
Jan 29, 2026
Merged

fix(core): Record client report with reason for HTTP 413 responses #19093

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
7ade71d
fix(core): Record client report with reason for HTTP 413 responses
logaretm Jan 29, 2026
b42a04e
ref: treeshake entire if block if debug is not enabled
logaretm Jan 29, 2026
e427e3d
fix: up size limit
logaretm Jan 29, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 2 additions & 2 deletions .size-limit.js
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -82,7 +82,7 @@ module.exports = [
path: 'packages/browser/build/npm/esm/prod/index.js',
import: createImport('init', 'browserTracingIntegration', 'replayIntegration', 'replayCanvasIntegration'),
gzip: true,
limit: '85.5 KB',
limit: '85.55 KB',
},
{
name: '@sentry/browser (incl. Tracing, Replay, Feedback)',
Expand DownExpand Up@@ -163,7 +163,7 @@ module.exports = [
path: 'packages/vue/build/esm/index.js',
import: createImport('init', 'browserTracingIntegration'),
gzip: true,
limit: '44 KB',
limit: '44.1 KB',
},
// Svelte SDK (ESM)
{
Expand Down
20 changes: 18 additions & 2 deletions packages/core/src/transports/base.ts
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -71,9 +71,25 @@ export function createTransport(
const requestTask = (): PromiseLike<TransportMakeRequestResponse> =>
makeRequest({ body: serializeEnvelope(filteredEnvelope) }).then(
response => {
// Handle 413 Content Too Large
// Loss of envelope content is expected so we record a send_error client report
// https://develop.sentry.dev/sdk/expected-features/#dealing-with-network-failures
if (response.statusCode === 413) {
DEBUG_BUILD &&

@Lms24Lms24Jan 29, 2026

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

super-l: Suggestion for a follow-up: Do you think we could save some bytes here by combining the two debug warns (the one added here and the one below)? I think we could even guard the entire if block in line 87 with DEBUG_BUILD which should shake out some more bytes. We can check that when running size checks in the PR and looking at the non-debug CDN bundles. Feel free to disregard!

@logaretmlogaretmJan 29, 2026

Copy link
Copy Markdown
MemberAuthor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I added a check to treeshake the block down there, but could not refactor the message in a way that saves up some byte, since both messages will get dropped if debug is disabled.

debug.error(
'Sentry responded with status code 413. Envelope was discarded due to exceeding size limits.',
);
recordEnvelopeLoss('send_error');
return response;
}

// We don't want to throw on NOK responses, but we want to at least log them
if (response.statusCode !== undefined && (response.statusCode < 200 || response.statusCode >= 300)) {
DEBUG_BUILD && debug.warn(`Sentry responded with status code ${response.statusCode} to sent event.`);
if (
DEBUG_BUILD &&
response.statusCode !== undefined &&
(response.statusCode < 200 || response.statusCode >= 300)
) {
debug.warn(`Sentry responded with status code ${response.statusCode} to sent event.`);
}

rateLimits = updateRateLimits(rateLimits, response);
Expand Down
76 changes: 76 additions & 0 deletions packages/core/test/lib/transports/base.test.ts
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -391,5 +391,81 @@ describe('createTransport', () => {
expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('network_error', 'error');
});
});

describe('HTTP 413 Content Too Large', () => {
it('should record send_error outcome when receiving 413 response', async () => {
const mockRecordDroppedEventCallback = vi.fn();

const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
resolvedSyncPromise({ statusCode: 413 }),
);

const result = await transport.send(ERROR_ENVELOPE);

// Should resolve without throwing
expect(result).toEqual({ statusCode: 413 });
// recordDroppedEvent SHOULD be called with send_error reason
expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
});

it('should record send_error for each item in envelope when receiving 413', async () => {
const mockRecordDroppedEventCallback = vi.fn();

const multiItemEnvelope = createEnvelope<EventEnvelope>(
{ event_id: 'aa3ff046696b4bc6b609ce6d28fde9e2', sent_at: '123' },
[
[{ type: 'event' }, { event_id: 'aa3ff046696b4bc6b609ce6d28fde9e2' }] as EventItem,
[{ type: 'transaction' }, { event_id: 'bb3ff046696b4bc6b609ce6d28fde9e2' }] as EventItem,
],
);

const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
resolvedSyncPromise({ statusCode: 413 }),
);

await transport.send(multiItemEnvelope);

// recordDroppedEvent SHOULD be called for each item
expect(mockRecordDroppedEventCallback).toHaveBeenCalledTimes(2);
expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'transaction');
});

it('should not record outcomes for client reports when receiving 413', async () => {
const mockRecordDroppedEventCallback = vi.fn();

const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
resolvedSyncPromise({ statusCode: 413 }),
);

const result = await transport.send(CLIENT_REPORT_ENVELOPE);

// Should resolve without throwing
expect(result).toEqual({ statusCode: 413 });
// recordDroppedEvent should NOT be called for client reports to avoid feedback loop
expect(mockRecordDroppedEventCallback).not.toHaveBeenCalled();
});

it('should not apply rate limits after receiving 413', async () => {
const mockRecordDroppedEventCallback = vi.fn();
const mockRequestExecutor = vi.fn(() => resolvedSyncPromise({ statusCode: 413 }));

const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, mockRequestExecutor);

// First request gets 413
await transport.send(ERROR_ENVELOPE);
expect(mockRequestExecutor).toHaveBeenCalledTimes(1);
expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
mockRequestExecutor.mockClear();
mockRecordDroppedEventCallback.mockClear();

// Second request should still be sent (no rate limiting applied from 413)
mockRequestExecutor.mockImplementation(() => resolvedSyncPromise({}));
await transport.send(ERROR_ENVELOPE);
expect(mockRequestExecutor).toHaveBeenCalledTimes(1);
// No send_error recorded for successful request
expect(mockRecordDroppedEventCallback).not.toHaveBeenCalled();
});
});
});
});
Loading
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
fix(core): Record client report with reason for HTTP 413 responses#19093

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

logaretm
merged 3 commits into

from

Jan 29, 2026
 Merged


fix(core): Record client report with reason for HTTP 413 responses
#19093
Show file tree
Hide file tree
 Changes from all commits
Commits

Show all changes


3 commits


Select commit
Hold shift + click to select a range
7ade71d

fix(core): Record client report with reason for HTTP 413 responses


logaretm Jan 29, 2026
b42a04e

ref: treeshake entire if block if debug is not enabled


logaretm Jan 29, 2026
e427e3d

fix: up size limit


logaretm Jan 29, 2026

File filter

Filter by extension
Filter by extension
Conversations

Failed to load comments. 
Loading
Jump to

Jump to file


Failed to load files. 
Loading
 Diff view

 Diff view


4 changes: 2 additions & 2 deletions
.size-limit.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -82,7 +82,7 @@ module.exports = [
 path: 'packages/browser/build/npm/esm/prod/index.js',
 import: createImport('init', 'browserTracingIntegration', 'replayIntegration', 'replayCanvasIntegration'),
 gzip: true,
 limit: '85.5 KB',
 limit: '85.55 KB',
 },
 {
 name: '@sentry/browser (incl. Tracing, Replay, Feedback)',
Expand DownExpand Up@@ -163,7 +163,7 @@ module.exports = [
 path: 'packages/vue/build/esm/index.js',
 import: createImport('init', 'browserTracingIntegration'),
 gzip: true,
 limit: '44 KB',
 limit: '44.1 KB',
 },
 // Svelte SDK (ESM)
 {
Expand Down

20 changes: 18 additions & 2 deletions
packages/core/src/transports/base.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -71,9 +71,25 @@ export function createTransport(
 const requestTask = (): PromiseLike<TransportMakeRequestResponse> =>
 makeRequest({ body: serializeEnvelope(filteredEnvelope) }).then(
 response => {
 // Handle 413 Content Too Large
 // Loss of envelope content is expected so we record a send_error client report
 // https://develop.sentry.dev/sdk/expected-features/#dealing-with-network-failures
 if (response.statusCode === 413) {
 DEBUG_BUILD &&
@Lms24Lms24Jan 29, 2026

Copy link


Copy Markdown

Member
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

super-l: Suggestion for a follow-up: Do you think we could save some bytes here by combining the two debug warns (the one added here and the one below)? I think we could even guard the entire if block in line 87 with DEBUG_BUILD which should shake out some more bytes. We can check that when running size checks in the PR and looking at the non-debug CDN bundles. Feel free to disregard!
@logaretmlogaretmJan 29, 2026

Copy link


Copy Markdown

MemberAuthor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I added a check to treeshake the block down there, but could not refactor the message in a way that saves up some byte, since both messages will get dropped if debug is disabled.
 debug.error(
 'Sentry responded with status code 413. Envelope was discarded due to exceeding size limits.',
 );
 recordEnvelopeLoss('send_error');
 return response;
 }

 // We don't want to throw on NOK responses, but we want to at least log them
 if (response.statusCode !== undefined && (response.statusCode < 200 || response.statusCode >= 300)) {
 DEBUG_BUILD && debug.warn(`Sentry responded with status code ${response.statusCode} to sent event.`);
 if (
 DEBUG_BUILD &&
 response.statusCode !== undefined &&
 (response.statusCode < 200 || response.statusCode >= 300)
 ) {
 debug.warn(`Sentry responded with status code ${response.statusCode} to sent event.`);
 }

 rateLimits = updateRateLimits(rateLimits, response);
Expand Down

76 changes: 76 additions & 0 deletions
packages/core/test/lib/transports/base.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -391,5 +391,81 @@ describe('createTransport', () => {
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('network_error', 'error');
 });
 });

 describe('HTTP 413 Content Too Large', () => {
 it('should record send_error outcome when receiving 413 response', async () => {
 const mockRecordDroppedEventCallback = vi.fn();

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
 resolvedSyncPromise({ statusCode: 413 }),
 );

 const result = await transport.send(ERROR_ENVELOPE);

 // Should resolve without throwing
 expect(result).toEqual({ statusCode: 413 });
 // recordDroppedEvent SHOULD be called with send_error reason
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
 });

 it('should record send_error for each item in envelope when receiving 413', async () => {
 const mockRecordDroppedEventCallback = vi.fn();

 const multiItemEnvelope = createEnvelope<EventEnvelope>(
 { event_id: 'aa3ff046696b4bc6b609ce6d28fde9e2', sent_at: '123' },
 [
 [{ type: 'event' }, { event_id: 'aa3ff046696b4bc6b609ce6d28fde9e2' }] as EventItem,
 [{ type: 'transaction' }, { event_id: 'bb3ff046696b4bc6b609ce6d28fde9e2' }] as EventItem,
 ],
 );

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
 resolvedSyncPromise({ statusCode: 413 }),
 );

 await transport.send(multiItemEnvelope);

 // recordDroppedEvent SHOULD be called for each item
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledTimes(2);
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'transaction');
 });

 it('should not record outcomes for client reports when receiving 413', async () => {
 const mockRecordDroppedEventCallback = vi.fn();

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
 resolvedSyncPromise({ statusCode: 413 }),
 );

 const result = await transport.send(CLIENT_REPORT_ENVELOPE);

 // Should resolve without throwing
 expect(result).toEqual({ statusCode: 413 });
 // recordDroppedEvent should NOT be called for client reports to avoid feedback loop
 expect(mockRecordDroppedEventCallback).not.toHaveBeenCalled();
 });

 it('should not apply rate limits after receiving 413', async () => {
 const mockRecordDroppedEventCallback = vi.fn();
 const mockRequestExecutor = vi.fn(() => resolvedSyncPromise({ statusCode: 413 }));

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, mockRequestExecutor);

 // First request gets 413
 await transport.send(ERROR_ENVELOPE);
 expect(mockRequestExecutor).toHaveBeenCalledTimes(1);
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
 mockRequestExecutor.mockClear();
 mockRecordDroppedEventCallback.mockClear();

 // Second request should still be sent (no rate limiting applied from 413)
 mockRequestExecutor.mockImplementation(() => resolvedSyncPromise({}));
 await transport.send(ERROR_ENVELOPE);
 expect(mockRequestExecutor).toHaveBeenCalledTimes(1);
 // No send_error recorded for successful request
 expect(mockRecordDroppedEventCallback).not.toHaveBeenCalled();
 });
 });
 });
});
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
fix(core): Record client report with reason for HTTP 413 responses#19093

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

logaretm
merged 3 commits into

from

Jan 29, 2026
 Merged


fix(core): Record client report with reason for HTTP 413 responses
#19093
Show file tree
Hide file tree
 Changes from all commits
Commits

Show all changes


3 commits


Select commit
Hold shift + click to select a range
7ade71d

fix(core): Record client report with reason for HTTP 413 responses


logaretm Jan 29, 2026
b42a04e

ref: treeshake entire if block if debug is not enabled


logaretm Jan 29, 2026
e427e3d

fix: up size limit


logaretm Jan 29, 2026

File filter

Filter by extension
Filter by extension
Conversations

Failed to load comments. 
Loading
Jump to

Jump to file


Failed to load files. 
Loading
 Diff view

 Diff view


4 changes: 2 additions & 2 deletions
.size-limit.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -82,7 +82,7 @@ module.exports = [
 path: 'packages/browser/build/npm/esm/prod/index.js',
 import: createImport('init', 'browserTracingIntegration', 'replayIntegration', 'replayCanvasIntegration'),
 gzip: true,
 limit: '85.5 KB',
 limit: '85.55 KB',
 },
 {
 name: '@sentry/browser (incl. Tracing, Replay, Feedback)',
Expand DownExpand Up@@ -163,7 +163,7 @@ module.exports = [
 path: 'packages/vue/build/esm/index.js',
 import: createImport('init', 'browserTracingIntegration'),
 gzip: true,
 limit: '44 KB',
 limit: '44.1 KB',
 },
 // Svelte SDK (ESM)
 {
Expand Down

20 changes: 18 additions & 2 deletions
packages/core/src/transports/base.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -71,9 +71,25 @@ export function createTransport(
 const requestTask = (): PromiseLike<TransportMakeRequestResponse> =>
 makeRequest({ body: serializeEnvelope(filteredEnvelope) }).then(
 response => {
 // Handle 413 Content Too Large
 // Loss of envelope content is expected so we record a send_error client report
 // https://develop.sentry.dev/sdk/expected-features/#dealing-with-network-failures
 if (response.statusCode === 413) {
 DEBUG_BUILD &&
@Lms24Lms24Jan 29, 2026

Copy link


Copy Markdown

Member
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

super-l: Suggestion for a follow-up: Do you think we could save some bytes here by combining the two debug warns (the one added here and the one below)? I think we could even guard the entire if block in line 87 with DEBUG_BUILD which should shake out some more bytes. We can check that when running size checks in the PR and looking at the non-debug CDN bundles. Feel free to disregard!
@logaretmlogaretmJan 29, 2026

Copy link


Copy Markdown

MemberAuthor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I added a check to treeshake the block down there, but could not refactor the message in a way that saves up some byte, since both messages will get dropped if debug is disabled.
 debug.error(
 'Sentry responded with status code 413. Envelope was discarded due to exceeding size limits.',
 );
 recordEnvelopeLoss('send_error');
 return response;
 }

 // We don't want to throw on NOK responses, but we want to at least log them
 if (response.statusCode !== undefined && (response.statusCode < 200 || response.statusCode >= 300)) {
 DEBUG_BUILD && debug.warn(`Sentry responded with status code ${response.statusCode} to sent event.`);
 if (
 DEBUG_BUILD &&
 response.statusCode !== undefined &&
 (response.statusCode < 200 || response.statusCode >= 300)
 ) {
 debug.warn(`Sentry responded with status code ${response.statusCode} to sent event.`);
 }

 rateLimits = updateRateLimits(rateLimits, response);
Expand Down

76 changes: 76 additions & 0 deletions
packages/core/test/lib/transports/base.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -391,5 +391,81 @@ describe('createTransport', () => {
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('network_error', 'error');
 });
 });

 describe('HTTP 413 Content Too Large', () => {
 it('should record send_error outcome when receiving 413 response', async () => {
 const mockRecordDroppedEventCallback = vi.fn();

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
 resolvedSyncPromise({ statusCode: 413 }),
 );

 const result = await transport.send(ERROR_ENVELOPE);

 // Should resolve without throwing
 expect(result).toEqual({ statusCode: 413 });
 // recordDroppedEvent SHOULD be called with send_error reason
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
 });

 it('should record send_error for each item in envelope when receiving 413', async () => {
 const mockRecordDroppedEventCallback = vi.fn();

 const multiItemEnvelope = createEnvelope<EventEnvelope>(
 { event_id: 'aa3ff046696b4bc6b609ce6d28fde9e2', sent_at: '123' },
 [
 [{ type: 'event' }, { event_id: 'aa3ff046696b4bc6b609ce6d28fde9e2' }] as EventItem,
 [{ type: 'transaction' }, { event_id: 'bb3ff046696b4bc6b609ce6d28fde9e2' }] as EventItem,
 ],
 );

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
 resolvedSyncPromise({ statusCode: 413 }),
 );

 await transport.send(multiItemEnvelope);

 // recordDroppedEvent SHOULD be called for each item
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledTimes(2);
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'transaction');
 });

 it('should not record outcomes for client reports when receiving 413', async () => {
 const mockRecordDroppedEventCallback = vi.fn();

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
 resolvedSyncPromise({ statusCode: 413 }),
 );

 const result = await transport.send(CLIENT_REPORT_ENVELOPE);

 // Should resolve without throwing
 expect(result).toEqual({ statusCode: 413 });
 // recordDroppedEvent should NOT be called for client reports to avoid feedback loop
 expect(mockRecordDroppedEventCallback).not.toHaveBeenCalled();
 });

 it('should not apply rate limits after receiving 413', async () => {
 const mockRecordDroppedEventCallback = vi.fn();
 const mockRequestExecutor = vi.fn(() => resolvedSyncPromise({ statusCode: 413 }));

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, mockRequestExecutor);

 // First request gets 413
 await transport.send(ERROR_ENVELOPE);
 expect(mockRequestExecutor).toHaveBeenCalledTimes(1);
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
 mockRequestExecutor.mockClear();
 mockRecordDroppedEventCallback.mockClear();

 // Second request should still be sent (no rate limiting applied from 413)
 mockRequestExecutor.mockImplementation(() => resolvedSyncPromise({}));
 await transport.send(ERROR_ENVELOPE);
 expect(mockRequestExecutor).toHaveBeenCalledTimes(1);
 // No send_error recorded for successful request
 expect(mockRecordDroppedEventCallback).not.toHaveBeenCalled();
 });
 });
 });
});
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
fix(core): Record client report with reason for HTTP 413 responses#19093

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

logaretm
merged 3 commits into

from

Jan 29, 2026
 Merged


fix(core): Record client report with reason for HTTP 413 responses
#19093
Show file tree
Hide file tree
 Changes from all commits
Commits

Show all changes


3 commits


Select commit
Hold shift + click to select a range
7ade71d

fix(core): Record client report with reason for HTTP 413 responses


logaretm Jan 29, 2026
b42a04e

ref: treeshake entire if block if debug is not enabled


logaretm Jan 29, 2026
e427e3d

fix: up size limit


logaretm Jan 29, 2026

File filter

Filter by extension
Filter by extension
Conversations

Failed to load comments. 
Loading
Jump to

Jump to file


Failed to load files. 
Loading
 Diff view

 Diff view


4 changes: 2 additions & 2 deletions
.size-limit.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -82,7 +82,7 @@ module.exports = [
 path: 'packages/browser/build/npm/esm/prod/index.js',
 import: createImport('init', 'browserTracingIntegration', 'replayIntegration', 'replayCanvasIntegration'),
 gzip: true,
 limit: '85.5 KB',
 limit: '85.55 KB',
 },
 {
 name: '@sentry/browser (incl. Tracing, Replay, Feedback)',
Expand DownExpand Up@@ -163,7 +163,7 @@ module.exports = [
 path: 'packages/vue/build/esm/index.js',
 import: createImport('init', 'browserTracingIntegration'),
 gzip: true,
 limit: '44 KB',
 limit: '44.1 KB',
 },
 // Svelte SDK (ESM)
 {
Expand Down

20 changes: 18 additions & 2 deletions
packages/core/src/transports/base.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -71,9 +71,25 @@ export function createTransport(
 const requestTask = (): PromiseLike<TransportMakeRequestResponse> =>
 makeRequest({ body: serializeEnvelope(filteredEnvelope) }).then(
 response => {
 // Handle 413 Content Too Large
 // Loss of envelope content is expected so we record a send_error client report
 // https://develop.sentry.dev/sdk/expected-features/#dealing-with-network-failures
 if (response.statusCode === 413) {
 DEBUG_BUILD &&
@Lms24Lms24Jan 29, 2026

Copy link


Copy Markdown

Member
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

super-l: Suggestion for a follow-up: Do you think we could save some bytes here by combining the two debug warns (the one added here and the one below)? I think we could even guard the entire if block in line 87 with DEBUG_BUILD which should shake out some more bytes. We can check that when running size checks in the PR and looking at the non-debug CDN bundles. Feel free to disregard!
@logaretmlogaretmJan 29, 2026

Copy link


Copy Markdown

MemberAuthor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I added a check to treeshake the block down there, but could not refactor the message in a way that saves up some byte, since both messages will get dropped if debug is disabled.
 debug.error(
 'Sentry responded with status code 413. Envelope was discarded due to exceeding size limits.',
 );
 recordEnvelopeLoss('send_error');
 return response;
 }

 // We don't want to throw on NOK responses, but we want to at least log them
 if (response.statusCode !== undefined && (response.statusCode < 200 || response.statusCode >= 300)) {
 DEBUG_BUILD && debug.warn(`Sentry responded with status code ${response.statusCode} to sent event.`);
 if (
 DEBUG_BUILD &&
 response.statusCode !== undefined &&
 (response.statusCode < 200 || response.statusCode >= 300)
 ) {
 debug.warn(`Sentry responded with status code ${response.statusCode} to sent event.`);
 }

 rateLimits = updateRateLimits(rateLimits, response);
Expand Down

76 changes: 76 additions & 0 deletions
packages/core/test/lib/transports/base.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -391,5 +391,81 @@ describe('createTransport', () => {
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('network_error', 'error');
 });
 });

 describe('HTTP 413 Content Too Large', () => {
 it('should record send_error outcome when receiving 413 response', async () => {
 const mockRecordDroppedEventCallback = vi.fn();

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
 resolvedSyncPromise({ statusCode: 413 }),
 );

 const result = await transport.send(ERROR_ENVELOPE);

 // Should resolve without throwing
 expect(result).toEqual({ statusCode: 413 });
 // recordDroppedEvent SHOULD be called with send_error reason
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
 });

 it('should record send_error for each item in envelope when receiving 413', async () => {
 const mockRecordDroppedEventCallback = vi.fn();

 const multiItemEnvelope = createEnvelope<EventEnvelope>(
 { event_id: 'aa3ff046696b4bc6b609ce6d28fde9e2', sent_at: '123' },
 [
 [{ type: 'event' }, { event_id: 'aa3ff046696b4bc6b609ce6d28fde9e2' }] as EventItem,
 [{ type: 'transaction' }, { event_id: 'bb3ff046696b4bc6b609ce6d28fde9e2' }] as EventItem,
 ],
 );

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
 resolvedSyncPromise({ statusCode: 413 }),
 );

 await transport.send(multiItemEnvelope);

 // recordDroppedEvent SHOULD be called for each item
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledTimes(2);
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'transaction');
 });

 it('should not record outcomes for client reports when receiving 413', async () => {
 const mockRecordDroppedEventCallback = vi.fn();

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
 resolvedSyncPromise({ statusCode: 413 }),
 );

 const result = await transport.send(CLIENT_REPORT_ENVELOPE);

 // Should resolve without throwing
 expect(result).toEqual({ statusCode: 413 });
 // recordDroppedEvent should NOT be called for client reports to avoid feedback loop
 expect(mockRecordDroppedEventCallback).not.toHaveBeenCalled();
 });

 it('should not apply rate limits after receiving 413', async () => {
 const mockRecordDroppedEventCallback = vi.fn();
 const mockRequestExecutor = vi.fn(() => resolvedSyncPromise({ statusCode: 413 }));

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, mockRequestExecutor);

 // First request gets 413
 await transport.send(ERROR_ENVELOPE);
 expect(mockRequestExecutor).toHaveBeenCalledTimes(1);
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
 mockRequestExecutor.mockClear();
 mockRecordDroppedEventCallback.mockClear();

 // Second request should still be sent (no rate limiting applied from 413)
 mockRequestExecutor.mockImplementation(() => resolvedSyncPromise({}));
 await transport.send(ERROR_ENVELOPE);
 expect(mockRequestExecutor).toHaveBeenCalledTimes(1);
 // No send_error recorded for successful request
 expect(mockRecordDroppedEventCallback).not.toHaveBeenCalled();
 });
 });
 });
});
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
fix(core): Record client report with reason for HTTP 413 responses#19093

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

logaretm
merged 3 commits into

from

Jan 29, 2026
 Merged


fix(core): Record client report with reason for HTTP 413 responses
#19093
Show file tree
Hide file tree
 Changes from all commits
Commits

Show all changes


3 commits


Select commit
Hold shift + click to select a range
7ade71d

fix(core): Record client report with reason for HTTP 413 responses


logaretm Jan 29, 2026
b42a04e

ref: treeshake entire if block if debug is not enabled


logaretm Jan 29, 2026
e427e3d

fix: up size limit


logaretm Jan 29, 2026

File filter

Filter by extension
Filter by extension
Conversations

Failed to load comments. 
Loading
Jump to

Jump to file


Failed to load files. 
Loading
 Diff view

 Diff view


4 changes: 2 additions & 2 deletions
.size-limit.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -82,7 +82,7 @@ module.exports = [
 path: 'packages/browser/build/npm/esm/prod/index.js',
 import: createImport('init', 'browserTracingIntegration', 'replayIntegration', 'replayCanvasIntegration'),
 gzip: true,
 limit: '85.5 KB',
 limit: '85.55 KB',
 },
 {
 name: '@sentry/browser (incl. Tracing, Replay, Feedback)',
Expand DownExpand Up@@ -163,7 +163,7 @@ module.exports = [
 path: 'packages/vue/build/esm/index.js',
 import: createImport('init', 'browserTracingIntegration'),
 gzip: true,
 limit: '44 KB',
 limit: '44.1 KB',
 },
 // Svelte SDK (ESM)
 {
Expand Down

20 changes: 18 additions & 2 deletions
packages/core/src/transports/base.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -71,9 +71,25 @@ export function createTransport(
 const requestTask = (): PromiseLike<TransportMakeRequestResponse> =>
 makeRequest({ body: serializeEnvelope(filteredEnvelope) }).then(
 response => {
 // Handle 413 Content Too Large
 // Loss of envelope content is expected so we record a send_error client report
 // https://develop.sentry.dev/sdk/expected-features/#dealing-with-network-failures
 if (response.statusCode === 413) {
 DEBUG_BUILD &&
@Lms24Lms24Jan 29, 2026

Copy link


Copy Markdown

Member
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

super-l: Suggestion for a follow-up: Do you think we could save some bytes here by combining the two debug warns (the one added here and the one below)? I think we could even guard the entire if block in line 87 with DEBUG_BUILD which should shake out some more bytes. We can check that when running size checks in the PR and looking at the non-debug CDN bundles. Feel free to disregard!
@logaretmlogaretmJan 29, 2026

Copy link


Copy Markdown

MemberAuthor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I added a check to treeshake the block down there, but could not refactor the message in a way that saves up some byte, since both messages will get dropped if debug is disabled.
 debug.error(
 'Sentry responded with status code 413. Envelope was discarded due to exceeding size limits.',
 );
 recordEnvelopeLoss('send_error');
 return response;
 }

 // We don't want to throw on NOK responses, but we want to at least log them
 if (response.statusCode !== undefined && (response.statusCode < 200 || response.statusCode >= 300)) {
 DEBUG_BUILD && debug.warn(`Sentry responded with status code ${response.statusCode} to sent event.`);
 if (
 DEBUG_BUILD &&
 response.statusCode !== undefined &&
 (response.statusCode < 200 || response.statusCode >= 300)
 ) {
 debug.warn(`Sentry responded with status code ${response.statusCode} to sent event.`);
 }

 rateLimits = updateRateLimits(rateLimits, response);
Expand Down

76 changes: 76 additions & 0 deletions
packages/core/test/lib/transports/base.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -391,5 +391,81 @@ describe('createTransport', () => {
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('network_error', 'error');
 });
 });

 describe('HTTP 413 Content Too Large', () => {
 it('should record send_error outcome when receiving 413 response', async () => {
 const mockRecordDroppedEventCallback = vi.fn();

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
 resolvedSyncPromise({ statusCode: 413 }),
 );

 const result = await transport.send(ERROR_ENVELOPE);

 // Should resolve without throwing
 expect(result).toEqual({ statusCode: 413 });
 // recordDroppedEvent SHOULD be called with send_error reason
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
 });

 it('should record send_error for each item in envelope when receiving 413', async () => {
 const mockRecordDroppedEventCallback = vi.fn();

 const multiItemEnvelope = createEnvelope<EventEnvelope>(
 { event_id: 'aa3ff046696b4bc6b609ce6d28fde9e2', sent_at: '123' },
 [
 [{ type: 'event' }, { event_id: 'aa3ff046696b4bc6b609ce6d28fde9e2' }] as EventItem,
 [{ type: 'transaction' }, { event_id: 'bb3ff046696b4bc6b609ce6d28fde9e2' }] as EventItem,
 ],
 );

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
 resolvedSyncPromise({ statusCode: 413 }),
 );

 await transport.send(multiItemEnvelope);

 // recordDroppedEvent SHOULD be called for each item
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledTimes(2);
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'transaction');
 });

 it('should not record outcomes for client reports when receiving 413', async () => {
 const mockRecordDroppedEventCallback = vi.fn();

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
 resolvedSyncPromise({ statusCode: 413 }),
 );

 const result = await transport.send(CLIENT_REPORT_ENVELOPE);

 // Should resolve without throwing
 expect(result).toEqual({ statusCode: 413 });
 // recordDroppedEvent should NOT be called for client reports to avoid feedback loop
 expect(mockRecordDroppedEventCallback).not.toHaveBeenCalled();
 });

 it('should not apply rate limits after receiving 413', async () => {
 const mockRecordDroppedEventCallback = vi.fn();
 const mockRequestExecutor = vi.fn(() => resolvedSyncPromise({ statusCode: 413 }));

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, mockRequestExecutor);

 // First request gets 413
 await transport.send(ERROR_ENVELOPE);
 expect(mockRequestExecutor).toHaveBeenCalledTimes(1);
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
 mockRequestExecutor.mockClear();
 mockRecordDroppedEventCallback.mockClear();

 // Second request should still be sent (no rate limiting applied from 413)
 mockRequestExecutor.mockImplementation(() => resolvedSyncPromise({}));
 await transport.send(ERROR_ENVELOPE);
 expect(mockRequestExecutor).toHaveBeenCalledTimes(1);
 // No send_error recorded for successful request
 expect(mockRecordDroppedEventCallback).not.toHaveBeenCalled();
 });
 });
 });
});
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
fix(core): Record client report with reason for HTTP 413 responses#19093

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

logaretm
merged 3 commits into

from

Jan 29, 2026
 Merged


fix(core): Record client report with reason for HTTP 413 responses
#19093
Show file tree
Hide file tree
 Changes from all commits
Commits

Show all changes


3 commits


Select commit
Hold shift + click to select a range
7ade71d

fix(core): Record client report with reason for HTTP 413 responses


logaretm Jan 29, 2026
b42a04e

ref: treeshake entire if block if debug is not enabled


logaretm Jan 29, 2026
e427e3d

fix: up size limit


logaretm Jan 29, 2026

File filter

Filter by extension
Filter by extension
Conversations

Failed to load comments. 
Loading
Jump to

Jump to file


Failed to load files. 
Loading
 Diff view

 Diff view


4 changes: 2 additions & 2 deletions
.size-limit.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -82,7 +82,7 @@ module.exports = [
 path: 'packages/browser/build/npm/esm/prod/index.js',
 import: createImport('init', 'browserTracingIntegration', 'replayIntegration', 'replayCanvasIntegration'),
 gzip: true,
 limit: '85.5 KB',
 limit: '85.55 KB',
 },
 {
 name: '@sentry/browser (incl. Tracing, Replay, Feedback)',
Expand DownExpand Up@@ -163,7 +163,7 @@ module.exports = [
 path: 'packages/vue/build/esm/index.js',
 import: createImport('init', 'browserTracingIntegration'),
 gzip: true,
 limit: '44 KB',
 limit: '44.1 KB',
 },
 // Svelte SDK (ESM)
 {
Expand Down

20 changes: 18 additions & 2 deletions
packages/core/src/transports/base.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -71,9 +71,25 @@ export function createTransport(
 const requestTask = (): PromiseLike<TransportMakeRequestResponse> =>
 makeRequest({ body: serializeEnvelope(filteredEnvelope) }).then(
 response => {
 // Handle 413 Content Too Large
 // Loss of envelope content is expected so we record a send_error client report
 // https://develop.sentry.dev/sdk/expected-features/#dealing-with-network-failures
 if (response.statusCode === 413) {
 DEBUG_BUILD &&
@Lms24Lms24Jan 29, 2026

Copy link


Copy Markdown

Member
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

super-l: Suggestion for a follow-up: Do you think we could save some bytes here by combining the two debug warns (the one added here and the one below)? I think we could even guard the entire if block in line 87 with DEBUG_BUILD which should shake out some more bytes. We can check that when running size checks in the PR and looking at the non-debug CDN bundles. Feel free to disregard!
@logaretmlogaretmJan 29, 2026

Copy link


Copy Markdown

MemberAuthor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I added a check to treeshake the block down there, but could not refactor the message in a way that saves up some byte, since both messages will get dropped if debug is disabled.
 debug.error(
 'Sentry responded with status code 413. Envelope was discarded due to exceeding size limits.',
 );
 recordEnvelopeLoss('send_error');
 return response;
 }

 // We don't want to throw on NOK responses, but we want to at least log them
 if (response.statusCode !== undefined && (response.statusCode < 200 || response.statusCode >= 300)) {
 DEBUG_BUILD && debug.warn(`Sentry responded with status code ${response.statusCode} to sent event.`);
 if (
 DEBUG_BUILD &&
 response.statusCode !== undefined &&
 (response.statusCode < 200 || response.statusCode >= 300)
 ) {
 debug.warn(`Sentry responded with status code ${response.statusCode} to sent event.`);
 }

 rateLimits = updateRateLimits(rateLimits, response);
Expand Down

76 changes: 76 additions & 0 deletions
packages/core/test/lib/transports/base.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -391,5 +391,81 @@ describe('createTransport', () => {
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('network_error', 'error');
 });
 });

 describe('HTTP 413 Content Too Large', () => {
 it('should record send_error outcome when receiving 413 response', async () => {
 const mockRecordDroppedEventCallback = vi.fn();

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
 resolvedSyncPromise({ statusCode: 413 }),
 );

 const result = await transport.send(ERROR_ENVELOPE);

 // Should resolve without throwing
 expect(result).toEqual({ statusCode: 413 });
 // recordDroppedEvent SHOULD be called with send_error reason
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
 });

 it('should record send_error for each item in envelope when receiving 413', async () => {
 const mockRecordDroppedEventCallback = vi.fn();

 const multiItemEnvelope = createEnvelope<EventEnvelope>(
 { event_id: 'aa3ff046696b4bc6b609ce6d28fde9e2', sent_at: '123' },
 [
 [{ type: 'event' }, { event_id: 'aa3ff046696b4bc6b609ce6d28fde9e2' }] as EventItem,
 [{ type: 'transaction' }, { event_id: 'bb3ff046696b4bc6b609ce6d28fde9e2' }] as EventItem,
 ],
 );

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
 resolvedSyncPromise({ statusCode: 413 }),
 );

 await transport.send(multiItemEnvelope);

 // recordDroppedEvent SHOULD be called for each item
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledTimes(2);
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'transaction');
 });

 it('should not record outcomes for client reports when receiving 413', async () => {
 const mockRecordDroppedEventCallback = vi.fn();

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
 resolvedSyncPromise({ statusCode: 413 }),
 );

 const result = await transport.send(CLIENT_REPORT_ENVELOPE);

 // Should resolve without throwing
 expect(result).toEqual({ statusCode: 413 });
 // recordDroppedEvent should NOT be called for client reports to avoid feedback loop
 expect(mockRecordDroppedEventCallback).not.toHaveBeenCalled();
 });

 it('should not apply rate limits after receiving 413', async () => {
 const mockRecordDroppedEventCallback = vi.fn();
 const mockRequestExecutor = vi.fn(() => resolvedSyncPromise({ statusCode: 413 }));

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, mockRequestExecutor);

 // First request gets 413
 await transport.send(ERROR_ENVELOPE);
 expect(mockRequestExecutor).toHaveBeenCalledTimes(1);
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
 mockRequestExecutor.mockClear();
 mockRecordDroppedEventCallback.mockClear();

 // Second request should still be sent (no rate limiting applied from 413)
 mockRequestExecutor.mockImplementation(() => resolvedSyncPromise({}));
 await transport.send(ERROR_ENVELOPE);
 expect(mockRequestExecutor).toHaveBeenCalledTimes(1);
 // No send_error recorded for successful request
 expect(mockRecordDroppedEventCallback).not.toHaveBeenCalled();
 });
 });
 });
});
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
fix(core): Record client report with reason for HTTP 413 responses#19093

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

logaretm
merged 3 commits into

from

Jan 29, 2026
 Merged


fix(core): Record client report with reason for HTTP 413 responses
#19093
Show file tree
Hide file tree
 Changes from all commits
Commits

Show all changes


3 commits


Select commit
Hold shift + click to select a range
7ade71d

fix(core): Record client report with reason for HTTP 413 responses


logaretm Jan 29, 2026
b42a04e

ref: treeshake entire if block if debug is not enabled


logaretm Jan 29, 2026
e427e3d

fix: up size limit


logaretm Jan 29, 2026

File filter

Filter by extension
Filter by extension
Conversations

Failed to load comments. 
Loading
Jump to

Jump to file


Failed to load files. 
Loading
 Diff view

 Diff view


4 changes: 2 additions & 2 deletions
.size-limit.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -82,7 +82,7 @@ module.exports = [
 path: 'packages/browser/build/npm/esm/prod/index.js',
 import: createImport('init', 'browserTracingIntegration', 'replayIntegration', 'replayCanvasIntegration'),
 gzip: true,
 limit: '85.5 KB',
 limit: '85.55 KB',
 },
 {
 name: '@sentry/browser (incl. Tracing, Replay, Feedback)',
Expand DownExpand Up@@ -163,7 +163,7 @@ module.exports = [
 path: 'packages/vue/build/esm/index.js',
 import: createImport('init', 'browserTracingIntegration'),
 gzip: true,
 limit: '44 KB',
 limit: '44.1 KB',
 },
 // Svelte SDK (ESM)
 {
Expand Down

20 changes: 18 additions & 2 deletions
packages/core/src/transports/base.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -71,9 +71,25 @@ export function createTransport(
 const requestTask = (): PromiseLike<TransportMakeRequestResponse> =>
 makeRequest({ body: serializeEnvelope(filteredEnvelope) }).then(
 response => {
 // Handle 413 Content Too Large
 // Loss of envelope content is expected so we record a send_error client report
 // https://develop.sentry.dev/sdk/expected-features/#dealing-with-network-failures
 if (response.statusCode === 413) {
 DEBUG_BUILD &&
@Lms24Lms24Jan 29, 2026

Copy link


Copy Markdown

Member
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

super-l: Suggestion for a follow-up: Do you think we could save some bytes here by combining the two debug warns (the one added here and the one below)? I think we could even guard the entire if block in line 87 with DEBUG_BUILD which should shake out some more bytes. We can check that when running size checks in the PR and looking at the non-debug CDN bundles. Feel free to disregard!
@logaretmlogaretmJan 29, 2026

Copy link


Copy Markdown

MemberAuthor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I added a check to treeshake the block down there, but could not refactor the message in a way that saves up some byte, since both messages will get dropped if debug is disabled.
 debug.error(
 'Sentry responded with status code 413. Envelope was discarded due to exceeding size limits.',
 );
 recordEnvelopeLoss('send_error');
 return response;
 }

 // We don't want to throw on NOK responses, but we want to at least log them
 if (response.statusCode !== undefined && (response.statusCode < 200 || response.statusCode >= 300)) {
 DEBUG_BUILD && debug.warn(`Sentry responded with status code ${response.statusCode} to sent event.`);
 if (
 DEBUG_BUILD &&
 response.statusCode !== undefined &&
 (response.statusCode < 200 || response.statusCode >= 300)
 ) {
 debug.warn(`Sentry responded with status code ${response.statusCode} to sent event.`);
 }

 rateLimits = updateRateLimits(rateLimits, response);
Expand Down

76 changes: 76 additions & 0 deletions
packages/core/test/lib/transports/base.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -391,5 +391,81 @@ describe('createTransport', () => {
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('network_error', 'error');
 });
 });

 describe('HTTP 413 Content Too Large', () => {
 it('should record send_error outcome when receiving 413 response', async () => {
 const mockRecordDroppedEventCallback = vi.fn();

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
 resolvedSyncPromise({ statusCode: 413 }),
 );

 const result = await transport.send(ERROR_ENVELOPE);

 // Should resolve without throwing
 expect(result).toEqual({ statusCode: 413 });
 // recordDroppedEvent SHOULD be called with send_error reason
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
 });

 it('should record send_error for each item in envelope when receiving 413', async () => {
 const mockRecordDroppedEventCallback = vi.fn();

 const multiItemEnvelope = createEnvelope<EventEnvelope>(
 { event_id: 'aa3ff046696b4bc6b609ce6d28fde9e2', sent_at: '123' },
 [
 [{ type: 'event' }, { event_id: 'aa3ff046696b4bc6b609ce6d28fde9e2' }] as EventItem,
 [{ type: 'transaction' }, { event_id: 'bb3ff046696b4bc6b609ce6d28fde9e2' }] as EventItem,
 ],
 );

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
 resolvedSyncPromise({ statusCode: 413 }),
 );

 await transport.send(multiItemEnvelope);

 // recordDroppedEvent SHOULD be called for each item
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledTimes(2);
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'transaction');
 });

 it('should not record outcomes for client reports when receiving 413', async () => {
 const mockRecordDroppedEventCallback = vi.fn();

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
 resolvedSyncPromise({ statusCode: 413 }),
 );

 const result = await transport.send(CLIENT_REPORT_ENVELOPE);

 // Should resolve without throwing
 expect(result).toEqual({ statusCode: 413 });
 // recordDroppedEvent should NOT be called for client reports to avoid feedback loop
 expect(mockRecordDroppedEventCallback).not.toHaveBeenCalled();
 });

 it('should not apply rate limits after receiving 413', async () => {
 const mockRecordDroppedEventCallback = vi.fn();
 const mockRequestExecutor = vi.fn(() => resolvedSyncPromise({ statusCode: 413 }));

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, mockRequestExecutor);

 // First request gets 413
 await transport.send(ERROR_ENVELOPE);
 expect(mockRequestExecutor).toHaveBeenCalledTimes(1);
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
 mockRequestExecutor.mockClear();
 mockRecordDroppedEventCallback.mockClear();

 // Second request should still be sent (no rate limiting applied from 413)
 mockRequestExecutor.mockImplementation(() => resolvedSyncPromise({}));
 await transport.send(ERROR_ENVELOPE);
 expect(mockRequestExecutor).toHaveBeenCalledTimes(1);
 // No send_error recorded for successful request
 expect(mockRecordDroppedEventCallback).not.toHaveBeenCalled();
 });
 });
 });
});
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content
fix(core): Record client report with reason for HTTP 413 responses#19093

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

logaretm
merged 3 commits into

from

Jan 29, 2026
 Merged


fix(core): Record client report with reason for HTTP 413 responses
#19093
Show file tree
Hide file tree
 Changes from all commits
Commits

Show all changes


3 commits


Select commit
Hold shift + click to select a range
7ade71d

fix(core): Record client report with reason for HTTP 413 responses


logaretm Jan 29, 2026
b42a04e

ref: treeshake entire if block if debug is not enabled


logaretm Jan 29, 2026
e427e3d

fix: up size limit


logaretm Jan 29, 2026

File filter

Filter by extension
Filter by extension
Conversations

Failed to load comments. 
Loading
Jump to

Jump to file


Failed to load files. 
Loading
 Diff view

 Diff view


4 changes: 2 additions & 2 deletions
.size-limit.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -82,7 +82,7 @@ module.exports = [
 path: 'packages/browser/build/npm/esm/prod/index.js',
 import: createImport('init', 'browserTracingIntegration', 'replayIntegration', 'replayCanvasIntegration'),
 gzip: true,
 limit: '85.5 KB',
 limit: '85.55 KB',
 },
 {
 name: '@sentry/browser (incl. Tracing, Replay, Feedback)',
Expand DownExpand Up@@ -163,7 +163,7 @@ module.exports = [
 path: 'packages/vue/build/esm/index.js',
 import: createImport('init', 'browserTracingIntegration'),
 gzip: true,
 limit: '44 KB',
 limit: '44.1 KB',
 },
 // Svelte SDK (ESM)
 {
Expand Down

20 changes: 18 additions & 2 deletions
packages/core/src/transports/base.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -71,9 +71,25 @@ export function createTransport(
 const requestTask = (): PromiseLike<TransportMakeRequestResponse> =>
 makeRequest({ body: serializeEnvelope(filteredEnvelope) }).then(
 response => {
 // Handle 413 Content Too Large
 // Loss of envelope content is expected so we record a send_error client report
 // https://develop.sentry.dev/sdk/expected-features/#dealing-with-network-failures
 if (response.statusCode === 413) {
 DEBUG_BUILD &&
@Lms24Lms24Jan 29, 2026

Copy link


Copy Markdown

Member
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

super-l: Suggestion for a follow-up: Do you think we could save some bytes here by combining the two debug warns (the one added here and the one below)? I think we could even guard the entire if block in line 87 with DEBUG_BUILD which should shake out some more bytes. We can check that when running size checks in the PR and looking at the non-debug CDN bundles. Feel free to disregard!
@logaretmlogaretmJan 29, 2026

Copy link


Copy Markdown

MemberAuthor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I added a check to treeshake the block down there, but could not refactor the message in a way that saves up some byte, since both messages will get dropped if debug is disabled.
 debug.error(
 'Sentry responded with status code 413. Envelope was discarded due to exceeding size limits.',
 );
 recordEnvelopeLoss('send_error');
 return response;
 }

 // We don't want to throw on NOK responses, but we want to at least log them
 if (response.statusCode !== undefined && (response.statusCode < 200 || response.statusCode >= 300)) {
 DEBUG_BUILD && debug.warn(`Sentry responded with status code ${response.statusCode} to sent event.`);
 if (
 DEBUG_BUILD &&
 response.statusCode !== undefined &&
 (response.statusCode < 200 || response.statusCode >= 300)
 ) {
 debug.warn(`Sentry responded with status code ${response.statusCode} to sent event.`);
 }

 rateLimits = updateRateLimits(rateLimits, response);
Expand Down

76 changes: 76 additions & 0 deletions
packages/core/test/lib/transports/base.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -391,5 +391,81 @@ describe('createTransport', () => {
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('network_error', 'error');
 });
 });

 describe('HTTP 413 Content Too Large', () => {
 it('should record send_error outcome when receiving 413 response', async () => {
 const mockRecordDroppedEventCallback = vi.fn();

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
 resolvedSyncPromise({ statusCode: 413 }),
 );

 const result = await transport.send(ERROR_ENVELOPE);

 // Should resolve without throwing
 expect(result).toEqual({ statusCode: 413 });
 // recordDroppedEvent SHOULD be called with send_error reason
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
 });

 it('should record send_error for each item in envelope when receiving 413', async () => {
 const mockRecordDroppedEventCallback = vi.fn();

 const multiItemEnvelope = createEnvelope<EventEnvelope>(
 { event_id: 'aa3ff046696b4bc6b609ce6d28fde9e2', sent_at: '123' },
 [
 [{ type: 'event' }, { event_id: 'aa3ff046696b4bc6b609ce6d28fde9e2' }] as EventItem,
 [{ type: 'transaction' }, { event_id: 'bb3ff046696b4bc6b609ce6d28fde9e2' }] as EventItem,
 ],
 );

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
 resolvedSyncPromise({ statusCode: 413 }),
 );

 await transport.send(multiItemEnvelope);

 // recordDroppedEvent SHOULD be called for each item
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledTimes(2);
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'transaction');
 });

 it('should not record outcomes for client reports when receiving 413', async () => {
 const mockRecordDroppedEventCallback = vi.fn();

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, () =>
 resolvedSyncPromise({ statusCode: 413 }),
 );

 const result = await transport.send(CLIENT_REPORT_ENVELOPE);

 // Should resolve without throwing
 expect(result).toEqual({ statusCode: 413 });
 // recordDroppedEvent should NOT be called for client reports to avoid feedback loop
 expect(mockRecordDroppedEventCallback).not.toHaveBeenCalled();
 });

 it('should not apply rate limits after receiving 413', async () => {
 const mockRecordDroppedEventCallback = vi.fn();
 const mockRequestExecutor = vi.fn(() => resolvedSyncPromise({ statusCode: 413 }));

 const transport = createTransport({ recordDroppedEvent: mockRecordDroppedEventCallback }, mockRequestExecutor);

 // First request gets 413
 await transport.send(ERROR_ENVELOPE);
 expect(mockRequestExecutor).toHaveBeenCalledTimes(1);
 expect(mockRecordDroppedEventCallback).toHaveBeenCalledWith('send_error', 'error');
 mockRequestExecutor.mockClear();
 mockRecordDroppedEventCallback.mockClear();

 // Second request should still be sent (no rate limiting applied from 413)
 mockRequestExecutor.mockImplementation(() => resolvedSyncPromise({}));
 await transport.send(ERROR_ENVELOPE);
 expect(mockRequestExecutor).toHaveBeenCalledTimes(1);
 // No send_error recorded for successful request
 expect(mockRecordDroppedEventCallback).not.toHaveBeenCalled();
 });
 });
 });
});
Loading