<![CDATA[Disable XSLT support/ warnings]]>Hello,

Chromium will stop supporting XSLT on client soon: https://developer.chrome.com/docs/web-platform/deprecating-xslt?hl=fr

There is a big warning shown in latest Opera (139.0.6053.38) :
2cd29f58-0a8b-4286-b4f8-7926debca3d0-image.png
Since our site already manages XSLT processing missing, it seems there is a fix for better detection : https://chromium-review.googlesource.com/c/chromium/src/+/8402142

I didn't find a flag to disable the XSLT processing, nor to disable the alert. It is making the current site unusable (Using Firefox currently as a workaround).

Is it a known issue ?

]]>https://forums.opera.com/topic/89964/disable-xslt-support-warningsRSS for NodeFri, 13 Nov 2026 11:00:12 GMTMon, 09 Nov 2026 12:50:26 GMT60<![CDATA[Reply to Disable XSLT support/ warnings on Thu, 12 Nov 2026 01:59:09 GMT]]>@mmichel Yes.

]]>https://forums.opera.com/post/412422https://forums.opera.com/post/412422Thu, 12 Nov 2026 01:59:09 GMT<![CDATA[Reply to Disable XSLT support/ warnings on Wed, 11 Nov 2026 22:42:53 GMT]]>@leocg Just tested on Google Chrome.
@burnout426 No problem on Oracle Developer. I just wait for it, then ?

]]>https://forums.opera.com/post/412411https://forums.opera.com/post/412411Wed, 11 Nov 2026 22:42:53 GMT<![CDATA[Reply to Disable XSLT support/ warnings on Tue, 10 Nov 2026 02:56:29 GMT]]>Opera is only on Chromium 155 at the moment. It should get the XSLT changes automatically as Opera is upgraded to use Chromium 156, 157 and 158 etc.

Opera Developer (developer section down the page at https://www.opera.com/download) is on Chromium 158. How do things work for you in it? I'm not seeing the XSLT flag in it at chrome://flags like I see in Chrome and Vivaldi though, so it'd be good to check.

Opera doesn't have a logged issue on this yet, so please test in Opera Developer to see if things are good there or not and report back.

]]>https://forums.opera.com/post/412335https://forums.opera.com/post/412335Tue, 10 Nov 2026 02:56:29 GMT<![CDATA[Reply to Disable XSLT support/ warnings on Mon, 09 Nov 2026 17:21:42 GMT]]>@mmichel Works on other Chromium browsers?

]]>https://forums.opera.com/post/412320https://forums.opera.com/post/412320Mon, 09 Nov 2026 17:21:42 GMT