DEFAULT_IGNORE_ERRORS's Facebook mobile browser fails to match when wrapped in something else

Is there an existing issue for this?

I have checked for existing issues https://github.com/getsentry/sentry-javascript/issues
I have reviewed the documentation https://docs.sentry.io/
I am using the latest SDK release https://github.com/getsentry/sentry-javascript/releases

How do you use Sentry?

Sentry Saas (sentry.io)

Which SDK are you using?

@sentry/react-router

SDK Version

10.70.0

Framework Version

No response

Link to Sentry event

https://thatskyapplication.sentry.io/issues/139365437/?project=4510164823375952

Reproduction Example/SDK Setup

Note

I had to tick I am using the latest SDK release, but that is irrelevant.

#15430 added a way to ignore these events by default, but it is wrapped in ^ and $. The issue is here:

sentry-javascript/packages/core/src/integrations/eventFilters.ts

Lines 10 to 24 in 1cc3bbc

    
           // "Script error." is hard coded into browsers for errors that it can't read. 
        
           // this is the result of a script being pulled in from an external domain and CORS. 
        
           const DEFAULT_IGNORE_ERRORS = [ 
        
             /^Script error\.?$/, 
        
             /^Javascript error: Script error\.? on line 0$/, 
        
             /^ResizeObserver loop completed with undelivered notifications.$/, // The browser logs this when a ResizeObserver handler takes a bit longer. Usually this is not an actual issue though. It indicates slowness. 
        
             /^Cannot redefine property: googletag$/, // This is thrown when google tag manager is used in combination with an ad blocker 
        
             /^Can't find variable: gmo$/, // Error from Google Search App https://issuetracker.google.com/issues/396043331 
        
             /^undefined is not an object \(evaluating 'a\.[A-Z]'\)$/, // Random error that happens but not actionable or noticeable to end-users. 
        
             /can't redefine non-configurable property "solana"/, // Probably a browser extension or custom browser (Brave) throwing this error 
        
             /vv\(\)\.getRestrictions is not a function/, // Error thrown by GTM, seemingly not affecting end-users 
        
             /Can't find variable: _AutofillCallbackHandler/, // Unactionable error in instagram webview https://developers.facebook.com/community/threads/320013549791141/ 
        
             /Object Not Found Matching Id:\d+, MethodName:simulateEvent/, // unactionable error from CEFSharp, a .NET library that embeds chromium in .NET apps 
        
             /^Java exception was raised during method invocation$/, // error from Facebook Mobile browser (https://github.com/getsentry/sentry-javascript/issues/15065) 
        
           ];

From my event, I see two:

Error invoking postMessage: Java exception was raised during method invocation
Error invoking postMessage: Java object is gone

It fails to match.

Steps to Reproduce

Go to packages/core/test/lib/integrations/eventFilters.test.ts and add the two strings above as tests.

Expected Result

Both dropped, as #15430 intended.

Actual Result

Alerts are still arriving for what should be ignored by default.

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.}

JS-3469

@Jiralite

Hey @Jiralite, thanks for reporting! We'll take a look.

fix(core): Match wrapped Facebook Mobile browser errors in `DEFAULT_I…

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`DEFAULT_IGNORE_ERRORS`'s Facebook mobile browser fails to match when wrapped in something else #23733

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	// "Script error." is hard coded into browsers for errors that it can't read.
	// this is the result of a script being pulled in from an external domain and CORS.
	const DEFAULT_IGNORE_ERRORS = [
	/^Script error\.?$/,
	/^Javascript error: Script error\.? on line 0$/,
	/^ResizeObserver loop completed with undelivered notifications.$/, // The browser logs this when a ResizeObserver handler takes a bit longer. Usually this is not an actual issue though. It indicates slowness.
	/^Cannot redefine property: googletag$/, // This is thrown when google tag manager is used in combination with an ad blocker
	/^Can't find variable: gmo$/, // Error from Google Search App https://issuetracker.google.com/issues/396043331
	/^undefined is not an object \(evaluating 'a\.[A-Z]'\)$/, // Random error that happens but not actionable or noticeable to end-users.
	/can't redefine non-configurable property "solana"/, // Probably a browser extension or custom browser (Brave) throwing this error
	/vv\(\)\.getRestrictions is not a function/, // Error thrown by GTM, seemingly not affecting end-users
	/Can't find variable: _AutofillCallbackHandler/, // Unactionable error in instagram webview https://developers.facebook.com/community/threads/320013549791141/
	/Object Not Found Matching Id:\d+, MethodName:simulateEvent/, // unactionable error from CEFSharp, a .NET library that embeds chromium in .NET apps
	/^Java exception was raised during method invocation$/, // error from Facebook Mobile browser (https://github.com/getsentry/sentry-javascript/issues/15065)
	];

DEFAULT_IGNORE_ERRORS's Facebook mobile browser fails to match when wrapped in something else #23733

Description

Is there an existing issue for this?

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linear-code commented on Aug 28, 2026

msonnb commented on Aug 28, 2026

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`DEFAULT_IGNORE_ERRORS`'s Facebook mobile browser fails to match when wrapped in something else #23733