"Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client" with AWS SDK #16438

Closed
#16473
Closed
"Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client" with AWS SDK#16438
#16473
Labels
BugNode.js

Description

@devunt
devunt
opened on Jun 1, 2025

Is there an existing issue for this?

How do you use Sentry?

Sentry Saas (sentry.io)

Which SDK are you using?

@sentry/node

SDK Version

9.24.0

Framework Version

No response

Link to Sentry event

No response

Reproduction Example/SDK Setup

No response

Steps to Reproduce

Stacktrace:

Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client
at ClientRequest.setHeader (node:_http_outgoing:642:11)
at SentryHttpInstrumentation._onOutgoingRequestCreated (/Users/finn/workspaces/typie/node_modules/.pnpm/@sentry+node@9.24.0/node_modules/@sentry/node/src/integrations/http/SentryHttpInstrumentation.ts:265:15)
at onHttpClientRequestCreated (/Users/finn/workspaces/typie/node_modules/.pnpm/@sentry+node@9.24.0/node_modules/@sentry/node/src/integrations/http/SentryHttpInstrumentation.ts:167:12)
at Channel.publish (node:diagnostics_channel:150:9)
at new ClientRequest (node:_http_client:384:35)
at request (node:https:381:10)
at /Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+node-http-handler@4.0.6/node_modules/@smithy/node-http-handler/dist-cjs/index.js:366:19
at new Promise (<anonymous>)
at _NodeHttpHandler.handle (/Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+node-http-handler@4.0.6/node_modules/@smithy/node-http-handler/dist-cjs/index.js:300:12)
at /Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+smithy-client@4.4.1/node_modules/@smithy/smithy-client/dist-cjs/index.js:155:35 {
code: 'ERR_HTTP_HEADERS_SENT'

Sentry initialization:

Sentry.init({dsn: "<actual dsn>",});

Code that causes trouble:

awaitaws.s3.send(newPutObjectCommand({Bucket: '<bucket name>',Key: `<some key>`,Body: <buffer>,}),);

package.json:

"@aws-sdk/client-s3": "^3.812.0",
"@sentry/node": "^9.24.0",

node -v:

v24.1.0

As a temporary workaround, setting tracePropagationTargets: [] solves the issue.

Expected Result

Code works well.

Actual Result

It does not.

Metadata

Metadata

Assignees

No one assigned

    Labels

    BugNode.js

    Projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions

    , '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
    "Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client" with AWS SDK #16438
    Closed
    #16473
    Closed
    "Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client" with AWS SDK#16438
    #16473
    Labels
    BugNode.js
    Description
    @devunt
    devunt
    opened on Jun 1, 2025
    Is there an existing issue for this?
    How do you use Sentry?
    Sentry Saas (sentry.io)
    Which SDK are you using?
    @sentry/node
    SDK Version
    9.24.0
    Framework Version
    No response
    Link to Sentry event
    No response
    Reproduction Example/SDK Setup
    No response
    Steps to Reproduce
    Stacktrace:
    Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client
at ClientRequest.setHeader (node:_http_outgoing:642:11)
at SentryHttpInstrumentation._onOutgoingRequestCreated (/Users/finn/workspaces/typie/node_modules/.pnpm/@sentry+node@9.24.0/node_modules/@sentry/node/src/integrations/http/SentryHttpInstrumentation.ts:265:15)
at onHttpClientRequestCreated (/Users/finn/workspaces/typie/node_modules/.pnpm/@sentry+node@9.24.0/node_modules/@sentry/node/src/integrations/http/SentryHttpInstrumentation.ts:167:12)
at Channel.publish (node:diagnostics_channel:150:9)
at new ClientRequest (node:_http_client:384:35)
at request (node:https:381:10)
at /Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+node-http-handler@4.0.6/node_modules/@smithy/node-http-handler/dist-cjs/index.js:366:19
at new Promise (<anonymous>)
at _NodeHttpHandler.handle (/Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+node-http-handler@4.0.6/node_modules/@smithy/node-http-handler/dist-cjs/index.js:300:12)
at /Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+smithy-client@4.4.1/node_modules/@smithy/smithy-client/dist-cjs/index.js:155:35 {
code: 'ERR_HTTP_HEADERS_SENT'

    Sentry initialization:
    Sentry.init({dsn: "<actual dsn>",});
    Code that causes trouble:
    awaitaws.s3.send(newPutObjectCommand({Bucket: '<bucket name>',Key: `<some key>`,Body: <buffer>,}),);
    package.json:
    "@aws-sdk/client-s3": "^3.812.0",
"@sentry/node": "^9.24.0",

    node -v:
    v24.1.0

    As a temporary workaround, setting tracePropagationTargets: [] solves the issue.
    Expected Result
    Code works well.
    Actual Result
    It does not.
    Metadata
    Metadata
    Assignees
    No one assigned
      Labels
      BugNode.js
      Projects
      Milestone
      No milestone
      Relationships
      None yet
      Development
      No branches or pull requests
      Issue actions
      
, '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
      "Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client" with AWS SDK #16438
      Closed
      #16473
      Closed
      "Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client" with AWS SDK#16438
      #16473
      Labels
      BugNode.js
      Description
      @devunt
      devunt
      opened on Jun 1, 2025
      Is there an existing issue for this?
      How do you use Sentry?
      Sentry Saas (sentry.io)
      Which SDK are you using?
      @sentry/node
      SDK Version
      9.24.0
      Framework Version
      No response
      Link to Sentry event
      No response
      Reproduction Example/SDK Setup
      No response
      Steps to Reproduce
      Stacktrace:
      Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client
at ClientRequest.setHeader (node:_http_outgoing:642:11)
at SentryHttpInstrumentation._onOutgoingRequestCreated (/Users/finn/workspaces/typie/node_modules/.pnpm/@sentry+node@9.24.0/node_modules/@sentry/node/src/integrations/http/SentryHttpInstrumentation.ts:265:15)
at onHttpClientRequestCreated (/Users/finn/workspaces/typie/node_modules/.pnpm/@sentry+node@9.24.0/node_modules/@sentry/node/src/integrations/http/SentryHttpInstrumentation.ts:167:12)
at Channel.publish (node:diagnostics_channel:150:9)
at new ClientRequest (node:_http_client:384:35)
at request (node:https:381:10)
at /Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+node-http-handler@4.0.6/node_modules/@smithy/node-http-handler/dist-cjs/index.js:366:19
at new Promise (<anonymous>)
at _NodeHttpHandler.handle (/Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+node-http-handler@4.0.6/node_modules/@smithy/node-http-handler/dist-cjs/index.js:300:12)
at /Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+smithy-client@4.4.1/node_modules/@smithy/smithy-client/dist-cjs/index.js:155:35 {
code: 'ERR_HTTP_HEADERS_SENT'

      Sentry initialization:
      Sentry.init({dsn: "<actual dsn>",});
      Code that causes trouble:
      awaitaws.s3.send(newPutObjectCommand({Bucket: '<bucket name>',Key: `<some key>`,Body: <buffer>,}),);
      package.json:
      "@aws-sdk/client-s3": "^3.812.0",
"@sentry/node": "^9.24.0",

      node -v:
      v24.1.0

      As a temporary workaround, setting tracePropagationTargets: [] solves the issue.
      Expected Result
      Code works well.
      Actual Result
      It does not.
      Metadata
      Metadata
      Assignees
      No one assigned
        Labels
        BugNode.js
        Projects
        Milestone
        No milestone
        Relationships
        None yet
        Development
        No branches or pull requests
        Issue actions
        
, '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
        "Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client" with AWS SDK #16438
        Closed
        #16473
        Closed
        "Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client" with AWS SDK#16438
        #16473
        Labels
        BugNode.js
        Description
        @devunt
        devunt
        opened on Jun 1, 2025
        Is there an existing issue for this?
        How do you use Sentry?
        Sentry Saas (sentry.io)
        Which SDK are you using?
        @sentry/node
        SDK Version
        9.24.0
        Framework Version
        No response
        Link to Sentry event
        No response
        Reproduction Example/SDK Setup
        No response
        Steps to Reproduce
        Stacktrace:
        Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client
at ClientRequest.setHeader (node:_http_outgoing:642:11)
at SentryHttpInstrumentation._onOutgoingRequestCreated (/Users/finn/workspaces/typie/node_modules/.pnpm/@sentry+node@9.24.0/node_modules/@sentry/node/src/integrations/http/SentryHttpInstrumentation.ts:265:15)
at onHttpClientRequestCreated (/Users/finn/workspaces/typie/node_modules/.pnpm/@sentry+node@9.24.0/node_modules/@sentry/node/src/integrations/http/SentryHttpInstrumentation.ts:167:12)
at Channel.publish (node:diagnostics_channel:150:9)
at new ClientRequest (node:_http_client:384:35)
at request (node:https:381:10)
at /Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+node-http-handler@4.0.6/node_modules/@smithy/node-http-handler/dist-cjs/index.js:366:19
at new Promise (<anonymous>)
at _NodeHttpHandler.handle (/Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+node-http-handler@4.0.6/node_modules/@smithy/node-http-handler/dist-cjs/index.js:300:12)
at /Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+smithy-client@4.4.1/node_modules/@smithy/smithy-client/dist-cjs/index.js:155:35 {
code: 'ERR_HTTP_HEADERS_SENT'

        Sentry initialization:
        Sentry.init({dsn: "<actual dsn>",});
        Code that causes trouble:
        awaitaws.s3.send(newPutObjectCommand({Bucket: '<bucket name>',Key: `<some key>`,Body: <buffer>,}),);
        package.json:
        "@aws-sdk/client-s3": "^3.812.0",
"@sentry/node": "^9.24.0",

        node -v:
        v24.1.0

        As a temporary workaround, setting tracePropagationTargets: [] solves the issue.
        Expected Result
        Code works well.
        Actual Result
        It does not.
        Metadata
        Metadata
        Assignees
        No one assigned
          Labels
          BugNode.js
          Projects
          Milestone
          No milestone
          Relationships
          None yet
          Development
          No branches or pull requests
          Issue actions
          
, '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
          "Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client" with AWS SDK #16438
          Closed
          #16473
          Closed
          "Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client" with AWS SDK#16438
          #16473
          Labels
          BugNode.js
          Description
          @devunt
          devunt
          opened on Jun 1, 2025
          Is there an existing issue for this?
          How do you use Sentry?
          Sentry Saas (sentry.io)
          Which SDK are you using?
          @sentry/node
          SDK Version
          9.24.0
          Framework Version
          No response
          Link to Sentry event
          No response
          Reproduction Example/SDK Setup
          No response
          Steps to Reproduce
          Stacktrace:
          Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client
at ClientRequest.setHeader (node:_http_outgoing:642:11)
at SentryHttpInstrumentation._onOutgoingRequestCreated (/Users/finn/workspaces/typie/node_modules/.pnpm/@sentry+node@9.24.0/node_modules/@sentry/node/src/integrations/http/SentryHttpInstrumentation.ts:265:15)
at onHttpClientRequestCreated (/Users/finn/workspaces/typie/node_modules/.pnpm/@sentry+node@9.24.0/node_modules/@sentry/node/src/integrations/http/SentryHttpInstrumentation.ts:167:12)
at Channel.publish (node:diagnostics_channel:150:9)
at new ClientRequest (node:_http_client:384:35)
at request (node:https:381:10)
at /Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+node-http-handler@4.0.6/node_modules/@smithy/node-http-handler/dist-cjs/index.js:366:19
at new Promise (<anonymous>)
at _NodeHttpHandler.handle (/Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+node-http-handler@4.0.6/node_modules/@smithy/node-http-handler/dist-cjs/index.js:300:12)
at /Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+smithy-client@4.4.1/node_modules/@smithy/smithy-client/dist-cjs/index.js:155:35 {
code: 'ERR_HTTP_HEADERS_SENT'

          Sentry initialization:
          Sentry.init({dsn: "<actual dsn>",});
          Code that causes trouble:
          awaitaws.s3.send(newPutObjectCommand({Bucket: '<bucket name>',Key: `<some key>`,Body: <buffer>,}),);
          package.json:
          "@aws-sdk/client-s3": "^3.812.0",
"@sentry/node": "^9.24.0",

          node -v:
          v24.1.0

          As a temporary workaround, setting tracePropagationTargets: [] solves the issue.
          Expected Result
          Code works well.
          Actual Result
          It does not.
          Metadata
          Metadata
          Assignees
          No one assigned
            Labels
            BugNode.js
            Projects
            Milestone
            No milestone
            Relationships
            None yet
            Development
            No branches or pull requests
            Issue actions
            
, '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
            "Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client" with AWS SDK #16438
            Closed
            #16473
            Closed
            "Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client" with AWS SDK#16438
            #16473
            Labels
            BugNode.js
            Description
            @devunt
            devunt
            opened on Jun 1, 2025
            Is there an existing issue for this?
            How do you use Sentry?
            Sentry Saas (sentry.io)
            Which SDK are you using?
            @sentry/node
            SDK Version
            9.24.0
            Framework Version
            No response
            Link to Sentry event
            No response
            Reproduction Example/SDK Setup
            No response
            Steps to Reproduce
            Stacktrace:
            Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client
at ClientRequest.setHeader (node:_http_outgoing:642:11)
at SentryHttpInstrumentation._onOutgoingRequestCreated (/Users/finn/workspaces/typie/node_modules/.pnpm/@sentry+node@9.24.0/node_modules/@sentry/node/src/integrations/http/SentryHttpInstrumentation.ts:265:15)
at onHttpClientRequestCreated (/Users/finn/workspaces/typie/node_modules/.pnpm/@sentry+node@9.24.0/node_modules/@sentry/node/src/integrations/http/SentryHttpInstrumentation.ts:167:12)
at Channel.publish (node:diagnostics_channel:150:9)
at new ClientRequest (node:_http_client:384:35)
at request (node:https:381:10)
at /Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+node-http-handler@4.0.6/node_modules/@smithy/node-http-handler/dist-cjs/index.js:366:19
at new Promise (<anonymous>)
at _NodeHttpHandler.handle (/Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+node-http-handler@4.0.6/node_modules/@smithy/node-http-handler/dist-cjs/index.js:300:12)
at /Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+smithy-client@4.4.1/node_modules/@smithy/smithy-client/dist-cjs/index.js:155:35 {
code: 'ERR_HTTP_HEADERS_SENT'

            Sentry initialization:
            Sentry.init({dsn: "<actual dsn>",});
            Code that causes trouble:
            awaitaws.s3.send(newPutObjectCommand({Bucket: '<bucket name>',Key: `<some key>`,Body: <buffer>,}),);
            package.json:
            "@aws-sdk/client-s3": "^3.812.0",
"@sentry/node": "^9.24.0",

            node -v:
            v24.1.0

            As a temporary workaround, setting tracePropagationTargets: [] solves the issue.
            Expected Result
            Code works well.
            Actual Result
            It does not.
            Metadata
            Metadata
            Assignees
            No one assigned
              Labels
              BugNode.js
              Projects
              Milestone
              No milestone
              Relationships
              None yet
              Development
              No branches or pull requests
              Issue actions
              
, '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
              "Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client" with AWS SDK #16438
              Closed
              #16473
              Closed
              "Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client" with AWS SDK#16438
              #16473
              Labels
              BugNode.js
              Description
              @devunt
              devunt
              opened on Jun 1, 2025
              Is there an existing issue for this?
              How do you use Sentry?
              Sentry Saas (sentry.io)
              Which SDK are you using?
              @sentry/node
              SDK Version
              9.24.0
              Framework Version
              No response
              Link to Sentry event
              No response
              Reproduction Example/SDK Setup
              No response
              Steps to Reproduce
              Stacktrace:
              Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client
at ClientRequest.setHeader (node:_http_outgoing:642:11)
at SentryHttpInstrumentation._onOutgoingRequestCreated (/Users/finn/workspaces/typie/node_modules/.pnpm/@sentry+node@9.24.0/node_modules/@sentry/node/src/integrations/http/SentryHttpInstrumentation.ts:265:15)
at onHttpClientRequestCreated (/Users/finn/workspaces/typie/node_modules/.pnpm/@sentry+node@9.24.0/node_modules/@sentry/node/src/integrations/http/SentryHttpInstrumentation.ts:167:12)
at Channel.publish (node:diagnostics_channel:150:9)
at new ClientRequest (node:_http_client:384:35)
at request (node:https:381:10)
at /Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+node-http-handler@4.0.6/node_modules/@smithy/node-http-handler/dist-cjs/index.js:366:19
at new Promise (<anonymous>)
at _NodeHttpHandler.handle (/Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+node-http-handler@4.0.6/node_modules/@smithy/node-http-handler/dist-cjs/index.js:300:12)
at /Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+smithy-client@4.4.1/node_modules/@smithy/smithy-client/dist-cjs/index.js:155:35 {
code: 'ERR_HTTP_HEADERS_SENT'

              Sentry initialization:
              Sentry.init({dsn: "<actual dsn>",});
              Code that causes trouble:
              awaitaws.s3.send(newPutObjectCommand({Bucket: '<bucket name>',Key: `<some key>`,Body: <buffer>,}),);
              package.json:
              "@aws-sdk/client-s3": "^3.812.0",
"@sentry/node": "^9.24.0",

              node -v:
              v24.1.0

              As a temporary workaround, setting tracePropagationTargets: [] solves the issue.
              Expected Result
              Code works well.
              Actual Result
              It does not.
              Metadata
              Metadata
              Assignees
              No one assigned
                Labels
                BugNode.js
                Projects
                Milestone
                No milestone
                Relationships
                None yet
                Development
                No branches or pull requests
                Issue actions
                
, '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
                "Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client" with AWS SDK #16438
                Closed
                #16473
                Closed
                "Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client" with AWS SDK#16438
                #16473
                Labels
                BugNode.js
                Description
                @devunt
                devunt
                opened on Jun 1, 2025
                Is there an existing issue for this?
                How do you use Sentry?
                Sentry Saas (sentry.io)
                Which SDK are you using?
                @sentry/node
                SDK Version
                9.24.0
                Framework Version
                No response
                Link to Sentry event
                No response
                Reproduction Example/SDK Setup
                No response
                Steps to Reproduce
                Stacktrace:
                Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client
at ClientRequest.setHeader (node:_http_outgoing:642:11)
at SentryHttpInstrumentation._onOutgoingRequestCreated (/Users/finn/workspaces/typie/node_modules/.pnpm/@sentry+node@9.24.0/node_modules/@sentry/node/src/integrations/http/SentryHttpInstrumentation.ts:265:15)
at onHttpClientRequestCreated (/Users/finn/workspaces/typie/node_modules/.pnpm/@sentry+node@9.24.0/node_modules/@sentry/node/src/integrations/http/SentryHttpInstrumentation.ts:167:12)
at Channel.publish (node:diagnostics_channel:150:9)
at new ClientRequest (node:_http_client:384:35)
at request (node:https:381:10)
at /Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+node-http-handler@4.0.6/node_modules/@smithy/node-http-handler/dist-cjs/index.js:366:19
at new Promise (<anonymous>)
at _NodeHttpHandler.handle (/Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+node-http-handler@4.0.6/node_modules/@smithy/node-http-handler/dist-cjs/index.js:300:12)
at /Users/finn/workspaces/typie/node_modules/.pnpm/@smithy+smithy-client@4.4.1/node_modules/@smithy/smithy-client/dist-cjs/index.js:155:35 {
code: 'ERR_HTTP_HEADERS_SENT'

                Sentry initialization:
                Sentry.init({dsn: "<actual dsn>",});
                Code that causes trouble:
                awaitaws.s3.send(newPutObjectCommand({Bucket: '<bucket name>',Key: `<some key>`,Body: <buffer>,}),);
                package.json:
                "@aws-sdk/client-s3": "^3.812.0",
"@sentry/node": "^9.24.0",

                node -v:
                v24.1.0

                As a temporary workaround, setting tracePropagationTargets: [] solves the issue.
                Expected Result
                Code works well.
                Actual Result
                It does not.
                Metadata
                Metadata
                Assignees
                No one assigned
                  Labels
                  BugNode.js
                  Projects
                  Milestone
                  No milestone
                  Relationships
                  None yet
                  Development
                  No branches or pull requests
                  Issue actions