RESOLVED FIXED265158
Regression: Safari 17.1 blocking JS reading nonce for <style> and <link> 
https://bugs.webkit.org/show_bug.cgi?id=265158
Summary Regression: Safari 17.1 blocking JS reading nonce for <style> and <link>
Chris J. Shull
Reported 2023-11-20 14:16:21 PST
Created attachment 468689 [details] Safari 17.0 (working) The Google Maps JavaScript API reads the nonce value of an existing <style> or <link rel="stylesheet"> in order to inject more stylesheets with the same nonce. This worked in Safari 17.0 Starting in Safari 17.1, we are unable to read the nonce value in JS anymore, causing the Google Maps JavaScript API to render incorrectly on websites. Here is a test page reported by one of our customers: https://maps-bug-1a422.web.app/index.html (We do the same thing for <script> elements, and that still works.)
Attachments
Safari 17.0 (working) (306.02 KB, image/png)
2023-11-20 14:16 PST, Chris J. Shull 		no flags
Details
Safari 17.1 (not working) (225.17 KB, image/png)
2023-11-20 14:16 PST, Chris J. Shull 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Chris J. Shull
Comment 1 2023-11-20 14:16:45 PST
Created attachment 468690 [details] Safari 17.1 (not working)
Chris J. Shull
Comment 2 2023-11-20 14:20:23 PST
test JS snippet: document.querySelector('style[nonce],link[rel="stylesheet"][nonce]').nonce should return he nonce value
Chris J. Shull
Comment 3 2023-11-20 14:48:02 PST
Apologies, I think something went pinky in my Safari 17.0 tests. Now I *can repro* it there. I'm going to close this and open anew bug that is clearer.
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