SDK throwing URIError URI malformed in some cases #19391

Closed
#19400
Closed
SDK throwing URIError URI malformed in some cases#19391
#19400
Assignees
Lms24
Labels
BugReact Router Framework

Description

@rodolfoBee
rodolfoBee
opened on Feb 18, 2026

Is there an existing issue for this?

How do you use Sentry?

Sentry Saas (sentry.io)

Which SDK are you using?

@sentry/react-router

SDK Version

10.22.0

Framework Version

NA

Link to Sentry event

No response

Reproduction Example/SDK Setup

No response

Steps to Reproduce

Exact steps to reproduce are currently unclear

Expected Result

No errors sent by the SDK

Actual Result

Error as seen in Sentry:

URIError: URI malformed
at decodeURI (<anonymous>)
at ? (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/node-stack-trace.js:99:30)
at ? (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/stacktrace.js:42:23)
at parseStackFrames (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:10:10)
at exceptionFromError (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:22:18)
at eventFromUnknownInput (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:138:16)
at NodeClient.eventFromException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/server-runtime-client.js:33:19)
at NodeClient.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/client.js:222:12)
at NodeClient.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/server-runtime-client.js:57:18)
at Scope.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/scope.js:504:18)

The stack trace points to this line:

return{ filename: filename ? decodeURI(filename) : undefined,
...

The exact cause of the error is unclear, but as pointed out by the affected user, a try/catch is used in another section as the decodeURI function can fail:

 try {
newUrl = decodeURI(url);
} catch {
//Sometimes this breaks
}

A possible solution is to wrap it in a try/catch block.

Link to internal ticket

Additional Context

No response

Priority

React with 👍 to help prioritize this issue. Please use comments to provide useful context, avoiding +1 or me too, to help us triage it.

Activity

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Metadata

Metadata

Assignees

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BugReact Router Framework

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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
SDK throwing URIError URI malformed in some cases #19391
Closed
#19400
Closed
SDK throwing URIError URI malformed in some cases#19391
#19400
Assignees
Lms24
Labels
BugReact Router Framework
Description
@rodolfoBee
rodolfoBee
opened on Feb 18, 2026
Is there an existing issue for this?
How do you use Sentry?
Sentry Saas (sentry.io)
Which SDK are you using?
@sentry/react-router
SDK Version
10.22.0
Framework Version
NA
Link to Sentry event
No response
Reproduction Example/SDK Setup
No response
Steps to Reproduce
Exact steps to reproduce are currently unclear
Expected Result
No errors sent by the SDK
Actual Result
Error as seen in Sentry:
URIError: URI malformed
at decodeURI (<anonymous>)
at ? (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/node-stack-trace.js:99:30)
at ? (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/stacktrace.js:42:23)
at parseStackFrames (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:10:10)
at exceptionFromError (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:22:18)
at eventFromUnknownInput (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:138:16)
at NodeClient.eventFromException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/server-runtime-client.js:33:19)
at NodeClient.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/client.js:222:12)
at NodeClient.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/server-runtime-client.js:57:18)
at Scope.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/scope.js:504:18)

The stack trace points to this line:
return{ filename: filename ? decodeURI(filename) : undefined,
...

The exact cause of the error is unclear, but as pointed out by the affected user, a try/catch is used in another section as the decodeURI function can fail:
 try {
newUrl = decodeURI(url);
} catch {
//Sometimes this breaks
}

A possible solution is to wrap it in a try/catch block.
Link to internal ticket
Additional Context
No response
Priority
React with 👍 to help prioritize this issue. Please use comments to provide useful context, avoiding +1 or me too, to help us triage it.
Activity
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Metadata
Metadata
Assignees
Labels
BugReact Router Framework
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
SDK throwing URIError URI malformed in some cases #19391
Closed
#19400
Closed
SDK throwing URIError URI malformed in some cases#19391
#19400
Assignees
Lms24
Labels
BugReact Router Framework
Description
@rodolfoBee
rodolfoBee
opened on Feb 18, 2026
Is there an existing issue for this?
How do you use Sentry?
Sentry Saas (sentry.io)
Which SDK are you using?
@sentry/react-router
SDK Version
10.22.0
Framework Version
NA
Link to Sentry event
No response
Reproduction Example/SDK Setup
No response
Steps to Reproduce
Exact steps to reproduce are currently unclear
Expected Result
No errors sent by the SDK
Actual Result
Error as seen in Sentry:
URIError: URI malformed
at decodeURI (<anonymous>)
at ? (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/node-stack-trace.js:99:30)
at ? (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/stacktrace.js:42:23)
at parseStackFrames (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:10:10)
at exceptionFromError (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:22:18)
at eventFromUnknownInput (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:138:16)
at NodeClient.eventFromException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/server-runtime-client.js:33:19)
at NodeClient.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/client.js:222:12)
at NodeClient.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/server-runtime-client.js:57:18)
at Scope.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/scope.js:504:18)

The stack trace points to this line:
return{ filename: filename ? decodeURI(filename) : undefined,
...

The exact cause of the error is unclear, but as pointed out by the affected user, a try/catch is used in another section as the decodeURI function can fail:
 try {
newUrl = decodeURI(url);
} catch {
//Sometimes this breaks
}

A possible solution is to wrap it in a try/catch block.
Link to internal ticket
Additional Context
No response
Priority
React with 👍 to help prioritize this issue. Please use comments to provide useful context, avoiding +1 or me too, to help us triage it.
Activity
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Metadata
Metadata
Assignees
Labels
BugReact Router Framework
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
SDK throwing URIError URI malformed in some cases #19391
Closed
#19400
Closed
SDK throwing URIError URI malformed in some cases#19391
#19400
Assignees
Lms24
Labels
BugReact Router Framework
Description
@rodolfoBee
rodolfoBee
opened on Feb 18, 2026
Is there an existing issue for this?
How do you use Sentry?
Sentry Saas (sentry.io)
Which SDK are you using?
@sentry/react-router
SDK Version
10.22.0
Framework Version
NA
Link to Sentry event
No response
Reproduction Example/SDK Setup
No response
Steps to Reproduce
Exact steps to reproduce are currently unclear
Expected Result
No errors sent by the SDK
Actual Result
Error as seen in Sentry:
URIError: URI malformed
at decodeURI (<anonymous>)
at ? (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/node-stack-trace.js:99:30)
at ? (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/stacktrace.js:42:23)
at parseStackFrames (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:10:10)
at exceptionFromError (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:22:18)
at eventFromUnknownInput (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:138:16)
at NodeClient.eventFromException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/server-runtime-client.js:33:19)
at NodeClient.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/client.js:222:12)
at NodeClient.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/server-runtime-client.js:57:18)
at Scope.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/scope.js:504:18)

The stack trace points to this line:
return{ filename: filename ? decodeURI(filename) : undefined,
...

The exact cause of the error is unclear, but as pointed out by the affected user, a try/catch is used in another section as the decodeURI function can fail:
 try {
newUrl = decodeURI(url);
} catch {
//Sometimes this breaks
}

A possible solution is to wrap it in a try/catch block.
Link to internal ticket
Additional Context
No response
Priority
React with 👍 to help prioritize this issue. Please use comments to provide useful context, avoiding +1 or me too, to help us triage it.
Activity
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Metadata
Metadata
Assignees
Labels
BugReact Router Framework
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
SDK throwing URIError URI malformed in some cases #19391
Closed
#19400
Closed
SDK throwing URIError URI malformed in some cases#19391
#19400
Assignees
Lms24
Labels
BugReact Router Framework
Description
@rodolfoBee
rodolfoBee
opened on Feb 18, 2026
Is there an existing issue for this?
How do you use Sentry?
Sentry Saas (sentry.io)
Which SDK are you using?
@sentry/react-router
SDK Version
10.22.0
Framework Version
NA
Link to Sentry event
No response
Reproduction Example/SDK Setup
No response
Steps to Reproduce
Exact steps to reproduce are currently unclear
Expected Result
No errors sent by the SDK
Actual Result
Error as seen in Sentry:
URIError: URI malformed
at decodeURI (<anonymous>)
at ? (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/node-stack-trace.js:99:30)
at ? (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/stacktrace.js:42:23)
at parseStackFrames (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:10:10)
at exceptionFromError (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:22:18)
at eventFromUnknownInput (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:138:16)
at NodeClient.eventFromException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/server-runtime-client.js:33:19)
at NodeClient.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/client.js:222:12)
at NodeClient.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/server-runtime-client.js:57:18)
at Scope.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/scope.js:504:18)

The stack trace points to this line:
return{ filename: filename ? decodeURI(filename) : undefined,
...

The exact cause of the error is unclear, but as pointed out by the affected user, a try/catch is used in another section as the decodeURI function can fail:
 try {
newUrl = decodeURI(url);
} catch {
//Sometimes this breaks
}

A possible solution is to wrap it in a try/catch block.
Link to internal ticket
Additional Context
No response
Priority
React with 👍 to help prioritize this issue. Please use comments to provide useful context, avoiding +1 or me too, to help us triage it.
Activity
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Metadata
Metadata
Assignees
Labels
BugReact Router Framework
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
SDK throwing URIError URI malformed in some cases #19391
Closed
#19400
Closed
SDK throwing URIError URI malformed in some cases#19391
#19400
Assignees
Lms24
Labels
BugReact Router Framework
Description
@rodolfoBee
rodolfoBee
opened on Feb 18, 2026
Is there an existing issue for this?
How do you use Sentry?
Sentry Saas (sentry.io)
Which SDK are you using?
@sentry/react-router
SDK Version
10.22.0
Framework Version
NA
Link to Sentry event
No response
Reproduction Example/SDK Setup
No response
Steps to Reproduce
Exact steps to reproduce are currently unclear
Expected Result
No errors sent by the SDK
Actual Result
Error as seen in Sentry:
URIError: URI malformed
at decodeURI (<anonymous>)
at ? (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/node-stack-trace.js:99:30)
at ? (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/stacktrace.js:42:23)
at parseStackFrames (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:10:10)
at exceptionFromError (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:22:18)
at eventFromUnknownInput (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:138:16)
at NodeClient.eventFromException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/server-runtime-client.js:33:19)
at NodeClient.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/client.js:222:12)
at NodeClient.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/server-runtime-client.js:57:18)
at Scope.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/scope.js:504:18)

The stack trace points to this line:
return{ filename: filename ? decodeURI(filename) : undefined,
...

The exact cause of the error is unclear, but as pointed out by the affected user, a try/catch is used in another section as the decodeURI function can fail:
 try {
newUrl = decodeURI(url);
} catch {
//Sometimes this breaks
}

A possible solution is to wrap it in a try/catch block.
Link to internal ticket
Additional Context
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, '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
SDK throwing URIError URI malformed in some cases #19391
Closed
#19400
Closed
SDK throwing URIError URI malformed in some cases#19391
#19400
Assignees
Lms24
Labels
BugReact Router Framework
Description
@rodolfoBee
rodolfoBee
opened on Feb 18, 2026
Is there an existing issue for this?
How do you use Sentry?
Sentry Saas (sentry.io)
Which SDK are you using?
@sentry/react-router
SDK Version
10.22.0
Framework Version
NA
Link to Sentry event
No response
Reproduction Example/SDK Setup
No response
Steps to Reproduce
Exact steps to reproduce are currently unclear
Expected Result
No errors sent by the SDK
Actual Result
Error as seen in Sentry:
URIError: URI malformed
at decodeURI (<anonymous>)
at ? (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/node-stack-trace.js:99:30)
at ? (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/stacktrace.js:42:23)
at parseStackFrames (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:10:10)
at exceptionFromError (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:22:18)
at eventFromUnknownInput (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:138:16)
at NodeClient.eventFromException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/server-runtime-client.js:33:19)
at NodeClient.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/client.js:222:12)
at NodeClient.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/server-runtime-client.js:57:18)
at Scope.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/scope.js:504:18)

The stack trace points to this line:
return{ filename: filename ? decodeURI(filename) : undefined,
...

The exact cause of the error is unclear, but as pointed out by the affected user, a try/catch is used in another section as the decodeURI function can fail:
 try {
newUrl = decodeURI(url);
} catch {
//Sometimes this breaks
}

A possible solution is to wrap it in a try/catch block.
Link to internal ticket
Additional Context
No response
Priority
React with 👍 to help prioritize this issue. Please use comments to provide useful context, avoiding +1 or me too, to help us triage it.
Activity
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Metadata
Metadata
Assignees
Labels
BugReact Router Framework
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
SDK throwing URIError URI malformed in some cases #19391
Closed
#19400
Closed
SDK throwing URIError URI malformed in some cases#19391
#19400
Assignees
Lms24
Labels
BugReact Router Framework
Description
@rodolfoBee
rodolfoBee
opened on Feb 18, 2026
Is there an existing issue for this?
How do you use Sentry?
Sentry Saas (sentry.io)
Which SDK are you using?
@sentry/react-router
SDK Version
10.22.0
Framework Version
NA
Link to Sentry event
No response
Reproduction Example/SDK Setup
No response
Steps to Reproduce
Exact steps to reproduce are currently unclear
Expected Result
No errors sent by the SDK
Actual Result
Error as seen in Sentry:
URIError: URI malformed
at decodeURI (<anonymous>)
at ? (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/node-stack-trace.js:99:30)
at ? (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/stacktrace.js:42:23)
at parseStackFrames (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:10:10)
at exceptionFromError (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:22:18)
at eventFromUnknownInput (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/utils/eventbuilder.js:138:16)
at NodeClient.eventFromException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/server-runtime-client.js:33:19)
at NodeClient.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/client.js:222:12)
at NodeClient.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/server-runtime-client.js:57:18)
at Scope.captureException (/var/task/node_modules/.pnpm/@sentry+core@10.22.0/node_modules/@sentry/core/build/esm/scope.js:504:18)

The stack trace points to this line:
return{ filename: filename ? decodeURI(filename) : undefined,
...

The exact cause of the error is unclear, but as pointed out by the affected user, a try/catch is used in another section as the decodeURI function can fail:
 try {
newUrl = decodeURI(url);
} catch {
//Sometimes this breaks
}

A possible solution is to wrap it in a try/catch block.
Link to internal ticket
Additional Context
No response
Priority
React with 👍 to help prioritize this issue. Please use comments to provide useful context, avoiding +1 or me too, to help us triage it.
Activity
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Metadata
Metadata
Assignees
Labels
BugReact Router Framework
Projects
Milestone
No milestone
Relationships
None yet
Development
No branches or pull requests
Issue actions