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jacekradko merged 1 commit into from
Jun 12, 2026
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feat(testing): log response diagnostics when FAPI retries are exhausted #8848

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5 changes: 5 additions & 0 deletions .changeset/large-pugs-shake.md
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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
'@clerk/testing': patch
---

When a Frontend API request exhausts its retries in the Playwright `setupClerkTestingToken` helper, the warning now includes response diagnostics (`cf-ray`, `retry-after`, `content-type`, and a truncated response body) so rate-limit responses can be attributed to their source. Network-error retry exhaustion now includes the error message in the warning as well.
107 changes: 106 additions & 1 deletion packages/testing/src/playwright/__tests__/setupClerkTestingToken.test.ts
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Original file line numberDiff line numberDiff line change
Expand Up@@ -311,6 +311,108 @@ describe('setupClerkTestingToken', () => {
warnSpy.mockRestore();
});

it('logs response diagnostics after exhausting retries on retryable status', async () => {
const { context, getRouteHandler } = createMockContext();
await setupClerkTestingToken({ context });

const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

const route = {
request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
fetch: vi.fn(() =>
Promise.resolve({
status: () => 429,
headers: () => ({
'cf-ray': '8f7a2b3c4d5e6f70-IAD',
'retry-after': '12',
'content-type': 'application/json',
}),
text: () => Promise.resolve('{"errors":[{"code":"too_many_requests"}]}'),
json: () => Promise.resolve({}),
}),
),
fulfill: vi.fn(() => Promise.resolve()),
continue: vi.fn(() => Promise.resolve()),
} as unknown as Route;

const handlerPromise = getRouteHandler()!(route);
await vi.advanceTimersByTimeAsync(60_000);
await handlerPromise;

expect(route.fulfill).toHaveBeenCalledTimes(1);
expect(warnSpy).toHaveBeenCalledTimes(1);
const warning = warnSpy.mock.calls[0][0] as string;
expect(warning).toContain('cf-ray: 8f7a2b3c4d5e6f70-IAD');
expect(warning).toContain('retry-after: 12');
expect(warning).toContain('content-type: application/json');
expect(warning).toContain('body: {"errors":[{"code":"too_many_requests"}]}');

warnSpy.mockRestore();
});

it('truncates long response bodies in diagnostics', async () => {
const { context, getRouteHandler } = createMockContext();
await setupClerkTestingToken({ context });

const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

const route = {
request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
fetch: vi.fn(() =>
Promise.resolve({
status: () => 429,
headers: () => ({}),
text: () => Promise.resolve('x'.repeat(2000)),
json: () => Promise.resolve({}),
}),
),
fulfill: vi.fn(() => Promise.resolve()),
continue: vi.fn(() => Promise.resolve()),
} as unknown as Route;

const handlerPromise = getRouteHandler()!(route);
await vi.advanceTimersByTimeAsync(60_000);
await handlerPromise;

expect(warnSpy).toHaveBeenCalledTimes(1);
const warning = warnSpy.mock.calls[0][0] as string;
expect(warning).toContain('cf-ray: n/a');
expect(warning).toContain(`body: ${'x'.repeat(500)}`);
expect(warning).not.toContain('x'.repeat(501));

warnSpy.mockRestore();
});

it('still fulfills the response when diagnostics cannot be read', async () => {
const { context, getRouteHandler } = createMockContext();
await setupClerkTestingToken({ context });

const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

// No headers()/text() on the response: diagnostics are best-effort and must not break fulfillment.
const route = {
request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
fetch: vi.fn(() =>
Promise.resolve({
status: () => 429,
json: () => Promise.resolve({}),
}),
),
fulfill: vi.fn(() => Promise.resolve()),
continue: vi.fn(() => Promise.resolve()),
} as unknown as Route;

const handlerPromise = getRouteHandler()!(route);
await vi.advanceTimersByTimeAsync(60_000);
await handlerPromise;

expect(route.fulfill).toHaveBeenCalledTimes(1);
expect(route.continue).not.toHaveBeenCalled();
expect(warnSpy).toHaveBeenCalledWith(expect.stringContaining('failed with status 429 after 4 attempts'));

warnSpy.mockRestore();
});

it('retries on thrown errors and warns after exhausting retries', async () => {
const { context, getRouteHandler } = createMockContext();
await setupClerkTestingToken({ context });
Expand All@@ -332,7 +434,10 @@ describe('setupClerkTestingToken', () => {

expect(route.fetch).toHaveBeenCalledTimes(4);
expect(route.continue).toHaveBeenCalledTimes(1);
expect(warnSpy).toHaveBeenCalledWith(expect.stringContaining('failed after 4 attempts'), networkError);
expect(warnSpy).toHaveBeenCalledTimes(1);
const warning = warnSpy.mock.calls[0][0] as string;
expect(warning).toContain('failed after 4 attempts');
expect(warning).toContain('net::ERR_CONNECTION_REFUSED');

warnSpy.mockRestore();
errorSpy.mockRestore();
Expand Down
14 changes: 11 additions & 3 deletions packages/testing/src/playwright/setupClerkTestingToken.ts
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -86,8 +86,17 @@ export const setupClerkTestingToken = async ({ context, options, page }: SetupCl
continue;
}

// Diagnostics are best-effort: never let them prevent fulfilling the response.
let diagnostics = '';
try {
const headers = response.headers();
diagnostics = `\n cf-ray: ${headers['cf-ray'] ?? 'n/a'}, retry-after: ${headers['retry-after'] ?? 'n/a'}, content-type: ${headers['content-type'] ?? 'n/a'}`;
diagnostics += `\n body: ${(await response.text()).slice(0, 500)}`;
} catch {
// ignore
}
console.warn(
`[Clerk Testing] FAPI request failed with status ${status} after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}`,
`[Clerk Testing] FAPI request failed with status ${status} after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}${diagnostics}`,
);
await route.fulfill({ response });
return;
Expand DownExpand Up@@ -121,8 +130,7 @@ export const setupClerkTestingToken = async ({ context, options, page }: SetupCl
}

console.warn(
`[Clerk Testing] FAPI request failed after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}`,
error,
`[Clerk Testing] FAPI request failed after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()} (${String(error)})`,
);
await route.continue({ url: urlString }).catch(console.error);
return;
Expand Down
Loading
, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
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;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
feat(testing): log response diagnostics when FAPI retries are exhausted by jacekradko · Pull Request #8848 · clerk/javascript · GitHub
Skip to content
feat(testing): log response diagnostics when FAPI retries are exhausted#8848

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 Merged

jacekradko
merged 1 commit into

from

Jun 12, 2026
 Merged


feat(testing): log response diagnostics when FAPI retries are exhausted
#8848
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5 changes: 5 additions & 0 deletions
.changeset/large-pugs-shake.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
'@clerk/testing': patch
---

When a Frontend API request exhausts its retries in the Playwright `setupClerkTestingToken` helper, the warning now includes response diagnostics (`cf-ray`, `retry-after`, `content-type`, and a truncated response body) so rate-limit responses can be attributed to their source. Network-error retry exhaustion now includes the error message in the warning as well.

107 changes: 106 additions & 1 deletion
packages/testing/src/playwright/__tests__/setupClerkTestingToken.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -311,6 +311,108 @@ describe('setupClerkTestingToken', () => {
 warnSpy.mockRestore();
 });

 it('logs response diagnostics after exhausting retries on retryable status', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });

 const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

 const route = {
 request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
 fetch: vi.fn(() =>
 Promise.resolve({
 status: () => 429,
 headers: () => ({
 'cf-ray': '8f7a2b3c4d5e6f70-IAD',
 'retry-after': '12',
 'content-type': 'application/json',
 }),
 text: () => Promise.resolve('{"errors":[{"code":"too_many_requests"}]}'),
 json: () => Promise.resolve({}),
 }),
 ),
 fulfill: vi.fn(() => Promise.resolve()),
 continue: vi.fn(() => Promise.resolve()),
 } as unknown as Route;

 const handlerPromise = getRouteHandler()!(route);
 await vi.advanceTimersByTimeAsync(60_000);
 await handlerPromise;

 expect(route.fulfill).toHaveBeenCalledTimes(1);
 expect(warnSpy).toHaveBeenCalledTimes(1);
 const warning = warnSpy.mock.calls[0][0] as string;
 expect(warning).toContain('cf-ray: 8f7a2b3c4d5e6f70-IAD');
 expect(warning).toContain('retry-after: 12');
 expect(warning).toContain('content-type: application/json');
 expect(warning).toContain('body: {"errors":[{"code":"too_many_requests"}]}');

 warnSpy.mockRestore();
 });

 it('truncates long response bodies in diagnostics', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });

 const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

 const route = {
 request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
 fetch: vi.fn(() =>
 Promise.resolve({
 status: () => 429,
 headers: () => ({}),
 text: () => Promise.resolve('x'.repeat(2000)),
 json: () => Promise.resolve({}),
 }),
 ),
 fulfill: vi.fn(() => Promise.resolve()),
 continue: vi.fn(() => Promise.resolve()),
 } as unknown as Route;

 const handlerPromise = getRouteHandler()!(route);
 await vi.advanceTimersByTimeAsync(60_000);
 await handlerPromise;

 expect(warnSpy).toHaveBeenCalledTimes(1);
 const warning = warnSpy.mock.calls[0][0] as string;
 expect(warning).toContain('cf-ray: n/a');
 expect(warning).toContain(`body: ${'x'.repeat(500)}`);
 expect(warning).not.toContain('x'.repeat(501));

 warnSpy.mockRestore();
 });

 it('still fulfills the response when diagnostics cannot be read', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });

 const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

 // No headers()/text() on the response: diagnostics are best-effort and must not break fulfillment.
 const route = {
 request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
 fetch: vi.fn(() =>
 Promise.resolve({
 status: () => 429,
 json: () => Promise.resolve({}),
 }),
 ),
 fulfill: vi.fn(() => Promise.resolve()),
 continue: vi.fn(() => Promise.resolve()),
 } as unknown as Route;

 const handlerPromise = getRouteHandler()!(route);
 await vi.advanceTimersByTimeAsync(60_000);
 await handlerPromise;

 expect(route.fulfill).toHaveBeenCalledTimes(1);
 expect(route.continue).not.toHaveBeenCalled();
 expect(warnSpy).toHaveBeenCalledWith(expect.stringContaining('failed with status 429 after 4 attempts'));

 warnSpy.mockRestore();
 });

 it('retries on thrown errors and warns after exhausting retries', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });
Expand All@@ -332,7 +434,10 @@ describe('setupClerkTestingToken', () => {

 expect(route.fetch).toHaveBeenCalledTimes(4);
 expect(route.continue).toHaveBeenCalledTimes(1);
 expect(warnSpy).toHaveBeenCalledWith(expect.stringContaining('failed after 4 attempts'), networkError);
 expect(warnSpy).toHaveBeenCalledTimes(1);
 const warning = warnSpy.mock.calls[0][0] as string;
 expect(warning).toContain('failed after 4 attempts');
 expect(warning).toContain('net::ERR_CONNECTION_REFUSED');

 warnSpy.mockRestore();
 errorSpy.mockRestore();
Expand Down

14 changes: 11 additions & 3 deletions
packages/testing/src/playwright/setupClerkTestingToken.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -86,8 +86,17 @@ export const setupClerkTestingToken = async ({ context, options, page }: SetupCl
 continue;
 }

 // Diagnostics are best-effort: never let them prevent fulfilling the response.
 let diagnostics = '';
 try {
 const headers = response.headers();
 diagnostics = `\n cf-ray: ${headers['cf-ray'] ?? 'n/a'}, retry-after: ${headers['retry-after'] ?? 'n/a'}, content-type: ${headers['content-type'] ?? 'n/a'}`;
 diagnostics += `\n body: ${(await response.text()).slice(0, 500)}`;
 } catch {
 // ignore
 }
 console.warn(
 `[Clerk Testing] FAPI request failed with status ${status} after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}`,
 `[Clerk Testing] FAPI request failed with status ${status} after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}${diagnostics}`,
 );
 await route.fulfill({ response });
 return;
Expand DownExpand Up@@ -121,8 +130,7 @@ export const setupClerkTestingToken = async ({ context, options, page }: SetupCl
 }

 console.warn(
 `[Clerk Testing] FAPI request failed after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}`,
 error,
 `[Clerk Testing] FAPI request failed after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()} (${String(error)})`,
 );
 await route.continue({ url: urlString }).catch(console.error);
 return;
Expand Down
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
feat(testing): log response diagnostics when FAPI retries are exhausted by jacekradko · Pull Request #8848 · clerk/javascript · GitHub
Skip to content
feat(testing): log response diagnostics when FAPI retries are exhausted#8848

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 Merged

jacekradko
merged 1 commit into

from

Jun 12, 2026
 Merged


feat(testing): log response diagnostics when FAPI retries are exhausted
#8848
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5 changes: 5 additions & 0 deletions
.changeset/large-pugs-shake.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
'@clerk/testing': patch
---

When a Frontend API request exhausts its retries in the Playwright `setupClerkTestingToken` helper, the warning now includes response diagnostics (`cf-ray`, `retry-after`, `content-type`, and a truncated response body) so rate-limit responses can be attributed to their source. Network-error retry exhaustion now includes the error message in the warning as well.

107 changes: 106 additions & 1 deletion
packages/testing/src/playwright/__tests__/setupClerkTestingToken.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -311,6 +311,108 @@ describe('setupClerkTestingToken', () => {
 warnSpy.mockRestore();
 });

 it('logs response diagnostics after exhausting retries on retryable status', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });

 const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

 const route = {
 request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
 fetch: vi.fn(() =>
 Promise.resolve({
 status: () => 429,
 headers: () => ({
 'cf-ray': '8f7a2b3c4d5e6f70-IAD',
 'retry-after': '12',
 'content-type': 'application/json',
 }),
 text: () => Promise.resolve('{"errors":[{"code":"too_many_requests"}]}'),
 json: () => Promise.resolve({}),
 }),
 ),
 fulfill: vi.fn(() => Promise.resolve()),
 continue: vi.fn(() => Promise.resolve()),
 } as unknown as Route;

 const handlerPromise = getRouteHandler()!(route);
 await vi.advanceTimersByTimeAsync(60_000);
 await handlerPromise;

 expect(route.fulfill).toHaveBeenCalledTimes(1);
 expect(warnSpy).toHaveBeenCalledTimes(1);
 const warning = warnSpy.mock.calls[0][0] as string;
 expect(warning).toContain('cf-ray: 8f7a2b3c4d5e6f70-IAD');
 expect(warning).toContain('retry-after: 12');
 expect(warning).toContain('content-type: application/json');
 expect(warning).toContain('body: {"errors":[{"code":"too_many_requests"}]}');

 warnSpy.mockRestore();
 });

 it('truncates long response bodies in diagnostics', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });

 const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

 const route = {
 request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
 fetch: vi.fn(() =>
 Promise.resolve({
 status: () => 429,
 headers: () => ({}),
 text: () => Promise.resolve('x'.repeat(2000)),
 json: () => Promise.resolve({}),
 }),
 ),
 fulfill: vi.fn(() => Promise.resolve()),
 continue: vi.fn(() => Promise.resolve()),
 } as unknown as Route;

 const handlerPromise = getRouteHandler()!(route);
 await vi.advanceTimersByTimeAsync(60_000);
 await handlerPromise;

 expect(warnSpy).toHaveBeenCalledTimes(1);
 const warning = warnSpy.mock.calls[0][0] as string;
 expect(warning).toContain('cf-ray: n/a');
 expect(warning).toContain(`body: ${'x'.repeat(500)}`);
 expect(warning).not.toContain('x'.repeat(501));

 warnSpy.mockRestore();
 });

 it('still fulfills the response when diagnostics cannot be read', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });

 const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

 // No headers()/text() on the response: diagnostics are best-effort and must not break fulfillment.
 const route = {
 request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
 fetch: vi.fn(() =>
 Promise.resolve({
 status: () => 429,
 json: () => Promise.resolve({}),
 }),
 ),
 fulfill: vi.fn(() => Promise.resolve()),
 continue: vi.fn(() => Promise.resolve()),
 } as unknown as Route;

 const handlerPromise = getRouteHandler()!(route);
 await vi.advanceTimersByTimeAsync(60_000);
 await handlerPromise;

 expect(route.fulfill).toHaveBeenCalledTimes(1);
 expect(route.continue).not.toHaveBeenCalled();
 expect(warnSpy).toHaveBeenCalledWith(expect.stringContaining('failed with status 429 after 4 attempts'));

 warnSpy.mockRestore();
 });

 it('retries on thrown errors and warns after exhausting retries', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });
Expand All@@ -332,7 +434,10 @@ describe('setupClerkTestingToken', () => {

 expect(route.fetch).toHaveBeenCalledTimes(4);
 expect(route.continue).toHaveBeenCalledTimes(1);
 expect(warnSpy).toHaveBeenCalledWith(expect.stringContaining('failed after 4 attempts'), networkError);
 expect(warnSpy).toHaveBeenCalledTimes(1);
 const warning = warnSpy.mock.calls[0][0] as string;
 expect(warning).toContain('failed after 4 attempts');
 expect(warning).toContain('net::ERR_CONNECTION_REFUSED');

 warnSpy.mockRestore();
 errorSpy.mockRestore();
Expand Down

14 changes: 11 additions & 3 deletions
packages/testing/src/playwright/setupClerkTestingToken.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -86,8 +86,17 @@ export const setupClerkTestingToken = async ({ context, options, page }: SetupCl
 continue;
 }

 // Diagnostics are best-effort: never let them prevent fulfilling the response.
 let diagnostics = '';
 try {
 const headers = response.headers();
 diagnostics = `\n cf-ray: ${headers['cf-ray'] ?? 'n/a'}, retry-after: ${headers['retry-after'] ?? 'n/a'}, content-type: ${headers['content-type'] ?? 'n/a'}`;
 diagnostics += `\n body: ${(await response.text()).slice(0, 500)}`;
 } catch {
 // ignore
 }
 console.warn(
 `[Clerk Testing] FAPI request failed with status ${status} after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}`,
 `[Clerk Testing] FAPI request failed with status ${status} after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}${diagnostics}`,
 );
 await route.fulfill({ response });
 return;
Expand DownExpand Up@@ -121,8 +130,7 @@ export const setupClerkTestingToken = async ({ context, options, page }: SetupCl
 }

 console.warn(
 `[Clerk Testing] FAPI request failed after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}`,
 error,
 `[Clerk Testing] FAPI request failed after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()} (${String(error)})`,
 );
 await route.continue({ url: urlString }).catch(console.error);
 return;
Expand Down
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
feat(testing): log response diagnostics when FAPI retries are exhausted by jacekradko · Pull Request #8848 · clerk/javascript · GitHub
Skip to content
feat(testing): log response diagnostics when FAPI retries are exhausted#8848

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jacekradko
merged 1 commit into

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Jun 12, 2026
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feat(testing): log response diagnostics when FAPI retries are exhausted
#8848
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5 changes: 5 additions & 0 deletions
.changeset/large-pugs-shake.md

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
'@clerk/testing': patch
---

When a Frontend API request exhausts its retries in the Playwright `setupClerkTestingToken` helper, the warning now includes response diagnostics (`cf-ray`, `retry-after`, `content-type`, and a truncated response body) so rate-limit responses can be attributed to their source. Network-error retry exhaustion now includes the error message in the warning as well.

107 changes: 106 additions & 1 deletion
packages/testing/src/playwright/__tests__/setupClerkTestingToken.test.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -311,6 +311,108 @@ describe('setupClerkTestingToken', () => {
 warnSpy.mockRestore();
 });

 it('logs response diagnostics after exhausting retries on retryable status', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });

 const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

 const route = {
 request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
 fetch: vi.fn(() =>
 Promise.resolve({
 status: () => 429,
 headers: () => ({
 'cf-ray': '8f7a2b3c4d5e6f70-IAD',
 'retry-after': '12',
 'content-type': 'application/json',
 }),
 text: () => Promise.resolve('{"errors":[{"code":"too_many_requests"}]}'),
 json: () => Promise.resolve({}),
 }),
 ),
 fulfill: vi.fn(() => Promise.resolve()),
 continue: vi.fn(() => Promise.resolve()),
 } as unknown as Route;

 const handlerPromise = getRouteHandler()!(route);
 await vi.advanceTimersByTimeAsync(60_000);
 await handlerPromise;

 expect(route.fulfill).toHaveBeenCalledTimes(1);
 expect(warnSpy).toHaveBeenCalledTimes(1);
 const warning = warnSpy.mock.calls[0][0] as string;
 expect(warning).toContain('cf-ray: 8f7a2b3c4d5e6f70-IAD');
 expect(warning).toContain('retry-after: 12');
 expect(warning).toContain('content-type: application/json');
 expect(warning).toContain('body: {"errors":[{"code":"too_many_requests"}]}');

 warnSpy.mockRestore();
 });

 it('truncates long response bodies in diagnostics', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });

 const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

 const route = {
 request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
 fetch: vi.fn(() =>
 Promise.resolve({
 status: () => 429,
 headers: () => ({}),
 text: () => Promise.resolve('x'.repeat(2000)),
 json: () => Promise.resolve({}),
 }),
 ),
 fulfill: vi.fn(() => Promise.resolve()),
 continue: vi.fn(() => Promise.resolve()),
 } as unknown as Route;

 const handlerPromise = getRouteHandler()!(route);
 await vi.advanceTimersByTimeAsync(60_000);
 await handlerPromise;

 expect(warnSpy).toHaveBeenCalledTimes(1);
 const warning = warnSpy.mock.calls[0][0] as string;
 expect(warning).toContain('cf-ray: n/a');
 expect(warning).toContain(`body: ${'x'.repeat(500)}`);
 expect(warning).not.toContain('x'.repeat(501));

 warnSpy.mockRestore();
 });

 it('still fulfills the response when diagnostics cannot be read', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });

 const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

 // No headers()/text() on the response: diagnostics are best-effort and must not break fulfillment.
 const route = {
 request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
 fetch: vi.fn(() =>
 Promise.resolve({
 status: () => 429,
 json: () => Promise.resolve({}),
 }),
 ),
 fulfill: vi.fn(() => Promise.resolve()),
 continue: vi.fn(() => Promise.resolve()),
 } as unknown as Route;

 const handlerPromise = getRouteHandler()!(route);
 await vi.advanceTimersByTimeAsync(60_000);
 await handlerPromise;

 expect(route.fulfill).toHaveBeenCalledTimes(1);
 expect(route.continue).not.toHaveBeenCalled();
 expect(warnSpy).toHaveBeenCalledWith(expect.stringContaining('failed with status 429 after 4 attempts'));

 warnSpy.mockRestore();
 });

 it('retries on thrown errors and warns after exhausting retries', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });
Expand All@@ -332,7 +434,10 @@ describe('setupClerkTestingToken', () => {

 expect(route.fetch).toHaveBeenCalledTimes(4);
 expect(route.continue).toHaveBeenCalledTimes(1);
 expect(warnSpy).toHaveBeenCalledWith(expect.stringContaining('failed after 4 attempts'), networkError);
 expect(warnSpy).toHaveBeenCalledTimes(1);
 const warning = warnSpy.mock.calls[0][0] as string;
 expect(warning).toContain('failed after 4 attempts');
 expect(warning).toContain('net::ERR_CONNECTION_REFUSED');

 warnSpy.mockRestore();
 errorSpy.mockRestore();
Expand Down

14 changes: 11 additions & 3 deletions
packages/testing/src/playwright/setupClerkTestingToken.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -86,8 +86,17 @@ export const setupClerkTestingToken = async ({ context, options, page }: SetupCl
 continue;
 }

 // Diagnostics are best-effort: never let them prevent fulfilling the response.
 let diagnostics = '';
 try {
 const headers = response.headers();
 diagnostics = `\n cf-ray: ${headers['cf-ray'] ?? 'n/a'}, retry-after: ${headers['retry-after'] ?? 'n/a'}, content-type: ${headers['content-type'] ?? 'n/a'}`;
 diagnostics += `\n body: ${(await response.text()).slice(0, 500)}`;
 } catch {
 // ignore
 }
 console.warn(
 `[Clerk Testing] FAPI request failed with status ${status} after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}`,
 `[Clerk Testing] FAPI request failed with status ${status} after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}${diagnostics}`,
 );
 await route.fulfill({ response });
 return;
Expand DownExpand Up@@ -121,8 +130,7 @@ export const setupClerkTestingToken = async ({ context, options, page }: SetupCl
 }

 console.warn(
 `[Clerk Testing] FAPI request failed after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}`,
 error,
 `[Clerk Testing] FAPI request failed after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()} (${String(error)})`,
 );
 await route.continue({ url: urlString }).catch(console.error);
 return;
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
feat(testing): log response diagnostics when FAPI retries are exhausted by jacekradko · Pull Request #8848 · clerk/javascript · GitHub
Skip to content
feat(testing): log response diagnostics when FAPI retries are exhausted#8848

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to your account

 Merged

jacekradko
merged 1 commit into

from

Jun 12, 2026
 Merged


feat(testing): log response diagnostics when FAPI retries are exhausted
#8848
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5 changes: 5 additions & 0 deletions
.changeset/large-pugs-shake.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
'@clerk/testing': patch
---

When a Frontend API request exhausts its retries in the Playwright `setupClerkTestingToken` helper, the warning now includes response diagnostics (`cf-ray`, `retry-after`, `content-type`, and a truncated response body) so rate-limit responses can be attributed to their source. Network-error retry exhaustion now includes the error message in the warning as well.

107 changes: 106 additions & 1 deletion
packages/testing/src/playwright/__tests__/setupClerkTestingToken.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -311,6 +311,108 @@ describe('setupClerkTestingToken', () => {
 warnSpy.mockRestore();
 });

 it('logs response diagnostics after exhausting retries on retryable status', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });

 const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

 const route = {
 request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
 fetch: vi.fn(() =>
 Promise.resolve({
 status: () => 429,
 headers: () => ({
 'cf-ray': '8f7a2b3c4d5e6f70-IAD',
 'retry-after': '12',
 'content-type': 'application/json',
 }),
 text: () => Promise.resolve('{"errors":[{"code":"too_many_requests"}]}'),
 json: () => Promise.resolve({}),
 }),
 ),
 fulfill: vi.fn(() => Promise.resolve()),
 continue: vi.fn(() => Promise.resolve()),
 } as unknown as Route;

 const handlerPromise = getRouteHandler()!(route);
 await vi.advanceTimersByTimeAsync(60_000);
 await handlerPromise;

 expect(route.fulfill).toHaveBeenCalledTimes(1);
 expect(warnSpy).toHaveBeenCalledTimes(1);
 const warning = warnSpy.mock.calls[0][0] as string;
 expect(warning).toContain('cf-ray: 8f7a2b3c4d5e6f70-IAD');
 expect(warning).toContain('retry-after: 12');
 expect(warning).toContain('content-type: application/json');
 expect(warning).toContain('body: {"errors":[{"code":"too_many_requests"}]}');

 warnSpy.mockRestore();
 });

 it('truncates long response bodies in diagnostics', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });

 const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

 const route = {
 request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
 fetch: vi.fn(() =>
 Promise.resolve({
 status: () => 429,
 headers: () => ({}),
 text: () => Promise.resolve('x'.repeat(2000)),
 json: () => Promise.resolve({}),
 }),
 ),
 fulfill: vi.fn(() => Promise.resolve()),
 continue: vi.fn(() => Promise.resolve()),
 } as unknown as Route;

 const handlerPromise = getRouteHandler()!(route);
 await vi.advanceTimersByTimeAsync(60_000);
 await handlerPromise;

 expect(warnSpy).toHaveBeenCalledTimes(1);
 const warning = warnSpy.mock.calls[0][0] as string;
 expect(warning).toContain('cf-ray: n/a');
 expect(warning).toContain(`body: ${'x'.repeat(500)}`);
 expect(warning).not.toContain('x'.repeat(501));

 warnSpy.mockRestore();
 });

 it('still fulfills the response when diagnostics cannot be read', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });

 const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

 // No headers()/text() on the response: diagnostics are best-effort and must not break fulfillment.
 const route = {
 request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
 fetch: vi.fn(() =>
 Promise.resolve({
 status: () => 429,
 json: () => Promise.resolve({}),
 }),
 ),
 fulfill: vi.fn(() => Promise.resolve()),
 continue: vi.fn(() => Promise.resolve()),
 } as unknown as Route;

 const handlerPromise = getRouteHandler()!(route);
 await vi.advanceTimersByTimeAsync(60_000);
 await handlerPromise;

 expect(route.fulfill).toHaveBeenCalledTimes(1);
 expect(route.continue).not.toHaveBeenCalled();
 expect(warnSpy).toHaveBeenCalledWith(expect.stringContaining('failed with status 429 after 4 attempts'));

 warnSpy.mockRestore();
 });

 it('retries on thrown errors and warns after exhausting retries', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });
Expand All@@ -332,7 +434,10 @@ describe('setupClerkTestingToken', () => {

 expect(route.fetch).toHaveBeenCalledTimes(4);
 expect(route.continue).toHaveBeenCalledTimes(1);
 expect(warnSpy).toHaveBeenCalledWith(expect.stringContaining('failed after 4 attempts'), networkError);
 expect(warnSpy).toHaveBeenCalledTimes(1);
 const warning = warnSpy.mock.calls[0][0] as string;
 expect(warning).toContain('failed after 4 attempts');
 expect(warning).toContain('net::ERR_CONNECTION_REFUSED');

 warnSpy.mockRestore();
 errorSpy.mockRestore();
Expand Down

14 changes: 11 additions & 3 deletions
packages/testing/src/playwright/setupClerkTestingToken.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -86,8 +86,17 @@ export const setupClerkTestingToken = async ({ context, options, page }: SetupCl
 continue;
 }

 // Diagnostics are best-effort: never let them prevent fulfilling the response.
 let diagnostics = '';
 try {
 const headers = response.headers();
 diagnostics = `\n cf-ray: ${headers['cf-ray'] ?? 'n/a'}, retry-after: ${headers['retry-after'] ?? 'n/a'}, content-type: ${headers['content-type'] ?? 'n/a'}`;
 diagnostics += `\n body: ${(await response.text()).slice(0, 500)}`;
 } catch {
 // ignore
 }
 console.warn(
 `[Clerk Testing] FAPI request failed with status ${status} after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}`,
 `[Clerk Testing] FAPI request failed with status ${status} after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}${diagnostics}`,
 );
 await route.fulfill({ response });
 return;
Expand DownExpand Up@@ -121,8 +130,7 @@ export const setupClerkTestingToken = async ({ context, options, page }: SetupCl
 }

 console.warn(
 `[Clerk Testing] FAPI request failed after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}`,
 error,
 `[Clerk Testing] FAPI request failed after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()} (${String(error)})`,
 );
 await route.continue({ url: urlString }).catch(console.error);
 return;
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
feat(testing): log response diagnostics when FAPI retries are exhausted by jacekradko · Pull Request #8848 · clerk/javascript · GitHub
Skip to content
feat(testing): log response diagnostics when FAPI retries are exhausted#8848

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Sign in
to your account

 Merged

jacekradko
merged 1 commit into

from

Jun 12, 2026
 Merged


feat(testing): log response diagnostics when FAPI retries are exhausted
#8848
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5 changes: 5 additions & 0 deletions
.changeset/large-pugs-shake.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
'@clerk/testing': patch
---

When a Frontend API request exhausts its retries in the Playwright `setupClerkTestingToken` helper, the warning now includes response diagnostics (`cf-ray`, `retry-after`, `content-type`, and a truncated response body) so rate-limit responses can be attributed to their source. Network-error retry exhaustion now includes the error message in the warning as well.

107 changes: 106 additions & 1 deletion
packages/testing/src/playwright/__tests__/setupClerkTestingToken.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -311,6 +311,108 @@ describe('setupClerkTestingToken', () => {
 warnSpy.mockRestore();
 });

 it('logs response diagnostics after exhausting retries on retryable status', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });

 const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

 const route = {
 request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
 fetch: vi.fn(() =>
 Promise.resolve({
 status: () => 429,
 headers: () => ({
 'cf-ray': '8f7a2b3c4d5e6f70-IAD',
 'retry-after': '12',
 'content-type': 'application/json',
 }),
 text: () => Promise.resolve('{"errors":[{"code":"too_many_requests"}]}'),
 json: () => Promise.resolve({}),
 }),
 ),
 fulfill: vi.fn(() => Promise.resolve()),
 continue: vi.fn(() => Promise.resolve()),
 } as unknown as Route;

 const handlerPromise = getRouteHandler()!(route);
 await vi.advanceTimersByTimeAsync(60_000);
 await handlerPromise;

 expect(route.fulfill).toHaveBeenCalledTimes(1);
 expect(warnSpy).toHaveBeenCalledTimes(1);
 const warning = warnSpy.mock.calls[0][0] as string;
 expect(warning).toContain('cf-ray: 8f7a2b3c4d5e6f70-IAD');
 expect(warning).toContain('retry-after: 12');
 expect(warning).toContain('content-type: application/json');
 expect(warning).toContain('body: {"errors":[{"code":"too_many_requests"}]}');

 warnSpy.mockRestore();
 });

 it('truncates long response bodies in diagnostics', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });

 const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

 const route = {
 request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
 fetch: vi.fn(() =>
 Promise.resolve({
 status: () => 429,
 headers: () => ({}),
 text: () => Promise.resolve('x'.repeat(2000)),
 json: () => Promise.resolve({}),
 }),
 ),
 fulfill: vi.fn(() => Promise.resolve()),
 continue: vi.fn(() => Promise.resolve()),
 } as unknown as Route;

 const handlerPromise = getRouteHandler()!(route);
 await vi.advanceTimersByTimeAsync(60_000);
 await handlerPromise;

 expect(warnSpy).toHaveBeenCalledTimes(1);
 const warning = warnSpy.mock.calls[0][0] as string;
 expect(warning).toContain('cf-ray: n/a');
 expect(warning).toContain(`body: ${'x'.repeat(500)}`);
 expect(warning).not.toContain('x'.repeat(501));

 warnSpy.mockRestore();
 });

 it('still fulfills the response when diagnostics cannot be read', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });

 const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

 // No headers()/text() on the response: diagnostics are best-effort and must not break fulfillment.
 const route = {
 request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
 fetch: vi.fn(() =>
 Promise.resolve({
 status: () => 429,
 json: () => Promise.resolve({}),
 }),
 ),
 fulfill: vi.fn(() => Promise.resolve()),
 continue: vi.fn(() => Promise.resolve()),
 } as unknown as Route;

 const handlerPromise = getRouteHandler()!(route);
 await vi.advanceTimersByTimeAsync(60_000);
 await handlerPromise;

 expect(route.fulfill).toHaveBeenCalledTimes(1);
 expect(route.continue).not.toHaveBeenCalled();
 expect(warnSpy).toHaveBeenCalledWith(expect.stringContaining('failed with status 429 after 4 attempts'));

 warnSpy.mockRestore();
 });

 it('retries on thrown errors and warns after exhausting retries', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });
Expand All@@ -332,7 +434,10 @@ describe('setupClerkTestingToken', () => {

 expect(route.fetch).toHaveBeenCalledTimes(4);
 expect(route.continue).toHaveBeenCalledTimes(1);
 expect(warnSpy).toHaveBeenCalledWith(expect.stringContaining('failed after 4 attempts'), networkError);
 expect(warnSpy).toHaveBeenCalledTimes(1);
 const warning = warnSpy.mock.calls[0][0] as string;
 expect(warning).toContain('failed after 4 attempts');
 expect(warning).toContain('net::ERR_CONNECTION_REFUSED');

 warnSpy.mockRestore();
 errorSpy.mockRestore();
Expand Down

14 changes: 11 additions & 3 deletions
packages/testing/src/playwright/setupClerkTestingToken.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -86,8 +86,17 @@ export const setupClerkTestingToken = async ({ context, options, page }: SetupCl
 continue;
 }

 // Diagnostics are best-effort: never let them prevent fulfilling the response.
 let diagnostics = '';
 try {
 const headers = response.headers();
 diagnostics = `\n cf-ray: ${headers['cf-ray'] ?? 'n/a'}, retry-after: ${headers['retry-after'] ?? 'n/a'}, content-type: ${headers['content-type'] ?? 'n/a'}`;
 diagnostics += `\n body: ${(await response.text()).slice(0, 500)}`;
 } catch {
 // ignore
 }
 console.warn(
 `[Clerk Testing] FAPI request failed with status ${status} after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}`,
 `[Clerk Testing] FAPI request failed with status ${status} after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}${diagnostics}`,
 );
 await route.fulfill({ response });
 return;
Expand DownExpand Up@@ -121,8 +130,7 @@ export const setupClerkTestingToken = async ({ context, options, page }: SetupCl
 }

 console.warn(
 `[Clerk Testing] FAPI request failed after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}`,
 error,
 `[Clerk Testing] FAPI request failed after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()} (${String(error)})`,
 );
 await route.continue({ url: urlString }).catch(console.error);
 return;
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
feat(testing): log response diagnostics when FAPI retries are exhausted by jacekradko · Pull Request #8848 · clerk/javascript · GitHub
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feat(testing): log response diagnostics when FAPI retries are exhausted#8848

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jacekradko
merged 1 commit into

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Jun 12, 2026
 Merged


feat(testing): log response diagnostics when FAPI retries are exhausted
#8848
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5 changes: 5 additions & 0 deletions
.changeset/large-pugs-shake.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
'@clerk/testing': patch
---

When a Frontend API request exhausts its retries in the Playwright `setupClerkTestingToken` helper, the warning now includes response diagnostics (`cf-ray`, `retry-after`, `content-type`, and a truncated response body) so rate-limit responses can be attributed to their source. Network-error retry exhaustion now includes the error message in the warning as well.

107 changes: 106 additions & 1 deletion
packages/testing/src/playwright/__tests__/setupClerkTestingToken.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -311,6 +311,108 @@ describe('setupClerkTestingToken', () => {
 warnSpy.mockRestore();
 });

 it('logs response diagnostics after exhausting retries on retryable status', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });

 const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

 const route = {
 request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
 fetch: vi.fn(() =>
 Promise.resolve({
 status: () => 429,
 headers: () => ({
 'cf-ray': '8f7a2b3c4d5e6f70-IAD',
 'retry-after': '12',
 'content-type': 'application/json',
 }),
 text: () => Promise.resolve('{"errors":[{"code":"too_many_requests"}]}'),
 json: () => Promise.resolve({}),
 }),
 ),
 fulfill: vi.fn(() => Promise.resolve()),
 continue: vi.fn(() => Promise.resolve()),
 } as unknown as Route;

 const handlerPromise = getRouteHandler()!(route);
 await vi.advanceTimersByTimeAsync(60_000);
 await handlerPromise;

 expect(route.fulfill).toHaveBeenCalledTimes(1);
 expect(warnSpy).toHaveBeenCalledTimes(1);
 const warning = warnSpy.mock.calls[0][0] as string;
 expect(warning).toContain('cf-ray: 8f7a2b3c4d5e6f70-IAD');
 expect(warning).toContain('retry-after: 12');
 expect(warning).toContain('content-type: application/json');
 expect(warning).toContain('body: {"errors":[{"code":"too_many_requests"}]}');

 warnSpy.mockRestore();
 });

 it('truncates long response bodies in diagnostics', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });

 const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

 const route = {
 request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
 fetch: vi.fn(() =>
 Promise.resolve({
 status: () => 429,
 headers: () => ({}),
 text: () => Promise.resolve('x'.repeat(2000)),
 json: () => Promise.resolve({}),
 }),
 ),
 fulfill: vi.fn(() => Promise.resolve()),
 continue: vi.fn(() => Promise.resolve()),
 } as unknown as Route;

 const handlerPromise = getRouteHandler()!(route);
 await vi.advanceTimersByTimeAsync(60_000);
 await handlerPromise;

 expect(warnSpy).toHaveBeenCalledTimes(1);
 const warning = warnSpy.mock.calls[0][0] as string;
 expect(warning).toContain('cf-ray: n/a');
 expect(warning).toContain(`body: ${'x'.repeat(500)}`);
 expect(warning).not.toContain('x'.repeat(501));

 warnSpy.mockRestore();
 });

 it('still fulfills the response when diagnostics cannot be read', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });

 const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

 // No headers()/text() on the response: diagnostics are best-effort and must not break fulfillment.
 const route = {
 request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
 fetch: vi.fn(() =>
 Promise.resolve({
 status: () => 429,
 json: () => Promise.resolve({}),
 }),
 ),
 fulfill: vi.fn(() => Promise.resolve()),
 continue: vi.fn(() => Promise.resolve()),
 } as unknown as Route;

 const handlerPromise = getRouteHandler()!(route);
 await vi.advanceTimersByTimeAsync(60_000);
 await handlerPromise;

 expect(route.fulfill).toHaveBeenCalledTimes(1);
 expect(route.continue).not.toHaveBeenCalled();
 expect(warnSpy).toHaveBeenCalledWith(expect.stringContaining('failed with status 429 after 4 attempts'));

 warnSpy.mockRestore();
 });

 it('retries on thrown errors and warns after exhausting retries', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });
Expand All@@ -332,7 +434,10 @@ describe('setupClerkTestingToken', () => {

 expect(route.fetch).toHaveBeenCalledTimes(4);
 expect(route.continue).toHaveBeenCalledTimes(1);
 expect(warnSpy).toHaveBeenCalledWith(expect.stringContaining('failed after 4 attempts'), networkError);
 expect(warnSpy).toHaveBeenCalledTimes(1);
 const warning = warnSpy.mock.calls[0][0] as string;
 expect(warning).toContain('failed after 4 attempts');
 expect(warning).toContain('net::ERR_CONNECTION_REFUSED');

 warnSpy.mockRestore();
 errorSpy.mockRestore();
Expand Down

14 changes: 11 additions & 3 deletions
packages/testing/src/playwright/setupClerkTestingToken.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -86,8 +86,17 @@ export const setupClerkTestingToken = async ({ context, options, page }: SetupCl
 continue;
 }

 // Diagnostics are best-effort: never let them prevent fulfilling the response.
 let diagnostics = '';
 try {
 const headers = response.headers();
 diagnostics = `\n cf-ray: ${headers['cf-ray'] ?? 'n/a'}, retry-after: ${headers['retry-after'] ?? 'n/a'}, content-type: ${headers['content-type'] ?? 'n/a'}`;
 diagnostics += `\n body: ${(await response.text()).slice(0, 500)}`;
 } catch {
 // ignore
 }
 console.warn(
 `[Clerk Testing] FAPI request failed with status ${status} after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}`,
 `[Clerk Testing] FAPI request failed with status ${status} after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}${diagnostics}`,
 );
 await route.fulfill({ response });
 return;
Expand DownExpand Up@@ -121,8 +130,7 @@ export const setupClerkTestingToken = async ({ context, options, page }: SetupCl
 }

 console.warn(
 `[Clerk Testing] FAPI request failed after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}`,
 error,
 `[Clerk Testing] FAPI request failed after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()} (${String(error)})`,
 );
 await route.continue({ url: urlString }).catch(console.error);
 return;
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
feat(testing): log response diagnostics when FAPI retries are exhausted by jacekradko · Pull Request #8848 · clerk/javascript · GitHub
Skip to content
feat(testing): log response diagnostics when FAPI retries are exhausted#8848

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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

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privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

jacekradko
merged 1 commit into

from

Jun 12, 2026
 Merged


feat(testing): log response diagnostics when FAPI retries are exhausted
#8848
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5 changes: 5 additions & 0 deletions
.changeset/large-pugs-shake.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
'@clerk/testing': patch
---

When a Frontend API request exhausts its retries in the Playwright `setupClerkTestingToken` helper, the warning now includes response diagnostics (`cf-ray`, `retry-after`, `content-type`, and a truncated response body) so rate-limit responses can be attributed to their source. Network-error retry exhaustion now includes the error message in the warning as well.

107 changes: 106 additions & 1 deletion
packages/testing/src/playwright/__tests__/setupClerkTestingToken.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -311,6 +311,108 @@ describe('setupClerkTestingToken', () => {
 warnSpy.mockRestore();
 });

 it('logs response diagnostics after exhausting retries on retryable status', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });

 const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

 const route = {
 request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
 fetch: vi.fn(() =>
 Promise.resolve({
 status: () => 429,
 headers: () => ({
 'cf-ray': '8f7a2b3c4d5e6f70-IAD',
 'retry-after': '12',
 'content-type': 'application/json',
 }),
 text: () => Promise.resolve('{"errors":[{"code":"too_many_requests"}]}'),
 json: () => Promise.resolve({}),
 }),
 ),
 fulfill: vi.fn(() => Promise.resolve()),
 continue: vi.fn(() => Promise.resolve()),
 } as unknown as Route;

 const handlerPromise = getRouteHandler()!(route);
 await vi.advanceTimersByTimeAsync(60_000);
 await handlerPromise;

 expect(route.fulfill).toHaveBeenCalledTimes(1);
 expect(warnSpy).toHaveBeenCalledTimes(1);
 const warning = warnSpy.mock.calls[0][0] as string;
 expect(warning).toContain('cf-ray: 8f7a2b3c4d5e6f70-IAD');
 expect(warning).toContain('retry-after: 12');
 expect(warning).toContain('content-type: application/json');
 expect(warning).toContain('body: {"errors":[{"code":"too_many_requests"}]}');

 warnSpy.mockRestore();
 });

 it('truncates long response bodies in diagnostics', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });

 const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

 const route = {
 request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
 fetch: vi.fn(() =>
 Promise.resolve({
 status: () => 429,
 headers: () => ({}),
 text: () => Promise.resolve('x'.repeat(2000)),
 json: () => Promise.resolve({}),
 }),
 ),
 fulfill: vi.fn(() => Promise.resolve()),
 continue: vi.fn(() => Promise.resolve()),
 } as unknown as Route;

 const handlerPromise = getRouteHandler()!(route);
 await vi.advanceTimersByTimeAsync(60_000);
 await handlerPromise;

 expect(warnSpy).toHaveBeenCalledTimes(1);
 const warning = warnSpy.mock.calls[0][0] as string;
 expect(warning).toContain('cf-ray: n/a');
 expect(warning).toContain(`body: ${'x'.repeat(500)}`);
 expect(warning).not.toContain('x'.repeat(501));

 warnSpy.mockRestore();
 });

 it('still fulfills the response when diagnostics cannot be read', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });

 const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});

 // No headers()/text() on the response: diagnostics are best-effort and must not break fulfillment.
 const route = {
 request: () => ({ url: () => 'https://clerk.example.com/v1/client' }),
 fetch: vi.fn(() =>
 Promise.resolve({
 status: () => 429,
 json: () => Promise.resolve({}),
 }),
 ),
 fulfill: vi.fn(() => Promise.resolve()),
 continue: vi.fn(() => Promise.resolve()),
 } as unknown as Route;

 const handlerPromise = getRouteHandler()!(route);
 await vi.advanceTimersByTimeAsync(60_000);
 await handlerPromise;

 expect(route.fulfill).toHaveBeenCalledTimes(1);
 expect(route.continue).not.toHaveBeenCalled();
 expect(warnSpy).toHaveBeenCalledWith(expect.stringContaining('failed with status 429 after 4 attempts'));

 warnSpy.mockRestore();
 });

 it('retries on thrown errors and warns after exhausting retries', async () => {
 const { context, getRouteHandler } = createMockContext();
 await setupClerkTestingToken({ context });
Expand All@@ -332,7 +434,10 @@ describe('setupClerkTestingToken', () => {

 expect(route.fetch).toHaveBeenCalledTimes(4);
 expect(route.continue).toHaveBeenCalledTimes(1);
 expect(warnSpy).toHaveBeenCalledWith(expect.stringContaining('failed after 4 attempts'), networkError);
 expect(warnSpy).toHaveBeenCalledTimes(1);
 const warning = warnSpy.mock.calls[0][0] as string;
 expect(warning).toContain('failed after 4 attempts');
 expect(warning).toContain('net::ERR_CONNECTION_REFUSED');

 warnSpy.mockRestore();
 errorSpy.mockRestore();
Expand Down

14 changes: 11 additions & 3 deletions
packages/testing/src/playwright/setupClerkTestingToken.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -86,8 +86,17 @@ export const setupClerkTestingToken = async ({ context, options, page }: SetupCl
 continue;
 }

 // Diagnostics are best-effort: never let them prevent fulfilling the response.
 let diagnostics = '';
 try {
 const headers = response.headers();
 diagnostics = `\n cf-ray: ${headers['cf-ray'] ?? 'n/a'}, retry-after: ${headers['retry-after'] ?? 'n/a'}, content-type: ${headers['content-type'] ?? 'n/a'}`;
 diagnostics += `\n body: ${(await response.text()).slice(0, 500)}`;
 } catch {
 // ignore
 }
 console.warn(
 `[Clerk Testing] FAPI request failed with status ${status} after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}`,
 `[Clerk Testing] FAPI request failed with status ${status} after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}${diagnostics}`,
 );
 await route.fulfill({ response });
 return;
Expand DownExpand Up@@ -121,8 +130,7 @@ export const setupClerkTestingToken = async ({ context, options, page }: SetupCl
 }

 console.warn(
 `[Clerk Testing] FAPI request failed after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()}`,
 error,
 `[Clerk Testing] FAPI request failed after ${MAX_ROUTE_RETRIES + 1} attempts: ${route.request().url()} (${String(error)})`,
 );
 await route.continue({ url: urlString }).catch(console.error);
 return;
Expand Down
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