SentryError constructor fail with a TypeError if Object/Error prototype has been frozen #15214

Description

@tomi

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

8.52.0

Framework Version

'@sentry/node': 8.52.0

Link to Sentry event

https://n8nio.sentry.io/issues/6252828797/events/4dcec130b6a94456a6693fd4d81ffc89/?project=4508342481780736

Reproduction Example/SDK Setup

No response

Steps to Reproduce

  1. Freeze prototypes of global objects. Object.prototype and Error.prototype are probably enough
Object.freeze(Object.prototype)Object.freeze(Error.prototype)
  1. Initialize sentry and add a beforeSend function that returns null
  2. Capture an error

Expected Result

No errors are thrown from Sentry code

Actual Result

This error is thrown and reported:

TypeError
Cannot assign to read only property 'name' of object 'Error: before send for type `error` returned `null`, will not send event.'

Please see the attached Sentry event link for more details

Metadata

Metadata

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No one assigned

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    No milestone

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    None yet

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    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

    SentryError constructor fail with a TypeError if Object/Error prototype has been frozen #15214

    Description

    @tomi

    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

    8.52.0

    Framework Version

    '@sentry/node': 8.52.0

    Link to Sentry event

    https://n8nio.sentry.io/issues/6252828797/events/4dcec130b6a94456a6693fd4d81ffc89/?project=4508342481780736

    Reproduction Example/SDK Setup

    No response

    Steps to Reproduce

    1. Freeze prototypes of global objects. Object.prototype and Error.prototype are probably enough
    Object.freeze(Object.prototype)Object.freeze(Error.prototype)
    1. Initialize sentry and add a beforeSend function that returns null
    2. Capture an error

    Expected Result

    No errors are thrown from Sentry code

    Actual Result

    This error is thrown and reported:

    TypeError
    Cannot assign to read only property 'name' of object 'Error: before send for type `error` returned `null`, will not send event.'
    

    Please see the attached Sentry event link for more details

    Metadata

    Metadata

    Assignees

    No one assigned

      Labels

      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

      SentryError constructor fail with a TypeError if Object/Error prototype has been frozen #15214

      Description

      @tomi

      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

      8.52.0

      Framework Version

      '@sentry/node': 8.52.0

      Link to Sentry event

      https://n8nio.sentry.io/issues/6252828797/events/4dcec130b6a94456a6693fd4d81ffc89/?project=4508342481780736

      Reproduction Example/SDK Setup

      No response

      Steps to Reproduce

      1. Freeze prototypes of global objects. Object.prototype and Error.prototype are probably enough
      Object.freeze(Object.prototype)Object.freeze(Error.prototype)
      1. Initialize sentry and add a beforeSend function that returns null
      2. Capture an error

      Expected Result

      No errors are thrown from Sentry code

      Actual Result

      This error is thrown and reported:

      TypeError
      Cannot assign to read only property 'name' of object 'Error: before send for type `error` returned `null`, will not send event.'
      

      Please see the attached Sentry event link for more details

      Metadata

      Metadata

      Assignees

      No one assigned

        Labels

        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

        SentryError constructor fail with a TypeError if Object/Error prototype has been frozen #15214

        Description

        @tomi

        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

        8.52.0

        Framework Version

        '@sentry/node': 8.52.0

        Link to Sentry event

        https://n8nio.sentry.io/issues/6252828797/events/4dcec130b6a94456a6693fd4d81ffc89/?project=4508342481780736

        Reproduction Example/SDK Setup

        No response

        Steps to Reproduce

        1. Freeze prototypes of global objects. Object.prototype and Error.prototype are probably enough
        Object.freeze(Object.prototype)Object.freeze(Error.prototype)
        1. Initialize sentry and add a beforeSend function that returns null
        2. Capture an error

        Expected Result

        No errors are thrown from Sentry code

        Actual Result

        This error is thrown and reported:

        TypeError
        Cannot assign to read only property 'name' of object 'Error: before send for type `error` returned `null`, will not send event.'
        

        Please see the attached Sentry event link for more details

        Metadata

        Metadata

        Assignees

        No one assigned

          Labels

          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

          SentryError constructor fail with a TypeError if Object/Error prototype has been frozen #15214

          Description

          @tomi

          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

          8.52.0

          Framework Version

          '@sentry/node': 8.52.0

          Link to Sentry event

          https://n8nio.sentry.io/issues/6252828797/events/4dcec130b6a94456a6693fd4d81ffc89/?project=4508342481780736

          Reproduction Example/SDK Setup

          No response

          Steps to Reproduce

          1. Freeze prototypes of global objects. Object.prototype and Error.prototype are probably enough
          Object.freeze(Object.prototype)Object.freeze(Error.prototype)
          1. Initialize sentry and add a beforeSend function that returns null
          2. Capture an error

          Expected Result

          No errors are thrown from Sentry code

          Actual Result

          This error is thrown and reported:

          TypeError
          Cannot assign to read only property 'name' of object 'Error: before send for type `error` returned `null`, will not send event.'
          

          Please see the attached Sentry event link for more details

          Metadata

          Metadata

          Assignees

          No one assigned

            Labels

            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

            SentryError constructor fail with a TypeError if Object/Error prototype has been frozen #15214

            Description

            @tomi

            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

            8.52.0

            Framework Version

            '@sentry/node': 8.52.0

            Link to Sentry event

            https://n8nio.sentry.io/issues/6252828797/events/4dcec130b6a94456a6693fd4d81ffc89/?project=4508342481780736

            Reproduction Example/SDK Setup

            No response

            Steps to Reproduce

            1. Freeze prototypes of global objects. Object.prototype and Error.prototype are probably enough
            Object.freeze(Object.prototype)Object.freeze(Error.prototype)
            1. Initialize sentry and add a beforeSend function that returns null
            2. Capture an error

            Expected Result

            No errors are thrown from Sentry code

            Actual Result

            This error is thrown and reported:

            TypeError
            Cannot assign to read only property 'name' of object 'Error: before send for type `error` returned `null`, will not send event.'
            

            Please see the attached Sentry event link for more details

            Metadata

            Metadata

            Assignees

            No one assigned

              Labels

              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

              SentryError constructor fail with a TypeError if Object/Error prototype has been frozen #15214

              Description

              @tomi

              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

              8.52.0

              Framework Version

              '@sentry/node': 8.52.0

              Link to Sentry event

              https://n8nio.sentry.io/issues/6252828797/events/4dcec130b6a94456a6693fd4d81ffc89/?project=4508342481780736

              Reproduction Example/SDK Setup

              No response

              Steps to Reproduce

              1. Freeze prototypes of global objects. Object.prototype and Error.prototype are probably enough
              Object.freeze(Object.prototype)Object.freeze(Error.prototype)
              1. Initialize sentry and add a beforeSend function that returns null
              2. Capture an error

              Expected Result

              No errors are thrown from Sentry code

              Actual Result

              This error is thrown and reported:

              TypeError
              Cannot assign to read only property 'name' of object 'Error: before send for type `error` returned `null`, will not send event.'
              

              Please see the attached Sentry event link for more details

              Metadata

              Metadata

              Assignees

              No one assigned

                Labels

                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

                SentryError constructor fail with a TypeError if Object/Error prototype has been frozen #15214

                Description

                @tomi

                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

                8.52.0

                Framework Version

                '@sentry/node': 8.52.0

                Link to Sentry event

                https://n8nio.sentry.io/issues/6252828797/events/4dcec130b6a94456a6693fd4d81ffc89/?project=4508342481780736

                Reproduction Example/SDK Setup

                No response

                Steps to Reproduce

                1. Freeze prototypes of global objects. Object.prototype and Error.prototype are probably enough
                Object.freeze(Object.prototype)Object.freeze(Error.prototype)
                1. Initialize sentry and add a beforeSend function that returns null
                2. Capture an error

                Expected Result

                No errors are thrown from Sentry code

                Actual Result

                This error is thrown and reported:

                TypeError
                Cannot assign to read only property 'name' of object 'Error: before send for type `error` returned `null`, will not send event.'
                

                Please see the attached Sentry event link for more details

                Metadata

                Metadata

                Assignees

                No one assigned

                  Labels

                  Projects

                  Milestone

                  No milestone

                  Relationships

                  None yet

                  Development

                  No branches or pull requests

                  Issue actions