246010 2022-10-04 01:37:43 -0700 @webkit-masked-url: (//hidden/) in stack trace 2025-06-22 14:37:36 -0700 1 1 1 Unclassified WebKit JavaScriptCore Safari 16 Mac (Intel) Unspecified RESOLVED INVALID https://bugs.webkit.org/show_bug.cgi?id=242278 https://bugs.webkit.org/show_bug.cgi?id=238576 https://github.com/getsentry/sentry-javascript/discussions/5875 P2 Normal --- 1 shramko.web webkit-unassigned achristensen ap edgar shramko.web timothy oldest_to_newest 1903070 0 shramko.web 2022-10-04 01:37:43 -0700 Hello. I began to see such errors in my project: //hidden/ in y@webkit-masked-url: at line 2:2930760 //hidden/ in fromAny@webkit-masked-url: at line 2:2931890 //hidden/ in _handleResponsePromise@webkit-masked-url: at line 2:1144366 //hidden/ in _handleDispatchResponse@webkit-masked-url: at line 2:1144141 //hidden/ in _handleMessage@webkit-masked-url: at line 2:1143837 //hidden/ in @webkit-masked-url: at line 2:1143638 //hidden/ in emit@webkit-masked-url: at line 2339:17 //hidden/ in @webkit-masked-url: at line 2138:26 1903071 1 shramko.web 2022-10-04 01:51:09 -0700 Mac OS X Version:10.15.7 1903072 2 shramko.web 2022-10-04 01:55:15 -0700 Noticed a bug in the Sentry. Looks like a bug in Safari itself, not my code. According to my logs, the bug is only in Mac OS X Version:10.15.7 1903199 3 ap 2022-10-04 11:54:15 -0700 I think that this may be expected behavior (masking extension code), but CC'ing some folks to respond authoritatively. 1903302 4 timothy 2022-10-04 18:21:18 -0700 YEs, if this is from a Safari Extension, Error.stack will mask the URLs. 1904389 5 ap 2022-10-09 13:58:24 -0700 Resolving per the above. 2125103 6 edgar 2025-06-22 14:37:36 -0700 I'm running into an issue here. I'm a developer of a Safari web extension and I use Sentry for error logging. As a result of this url masking feature all my stack traces in Sentry show up like this: ``` ReferenceError: Cannot access uninitialized variable. at ? (webkit-masked-url://hidden/:14677:28) at ? (webkit-masked-url://hidden/:16307:3) at global code(webkit-masked-url://hidden/:16309:12) ``` This is completely unhelpful. I can't see which file encountered an error. It also means that sourcemaps can't be associated with the stacktrace. Is there a workaround for extension developers who actually want to see the url?