Just a note/heads up for others that find themselves here...

I upgraded to v7.4.0-BETA1 - ran my unit tests, which worked in 7.3.x - and now they fail :)

Messages like:

Warning: DOMDocument::loadXML(): Failed to parse QName ':class' in Entity, line: 17 in /Users/phil/Sites/symfony-7.4-alpine-reproducer/vendor/symfony/dom-crawler/Crawler.php on line 1116Warning: DOMDocument::loadXML(): error parsing attribute name in Entity, line: 21 in /Users/phil/Sites/symfony-7.4-alpine-reproducer/vendor/symfony/dom-crawler/Crawler.php on line 1116

A reproducer is herehttps://github.com/PhilETaylor/symfony-7.4-alpine-reproducer

I think this is awont fix ...

the fact that Alpine.js makes you write code that reports warnings in spec-compliant HTML parsers looks like an issue for alpine.js instead.

However, it looks like the new code path does not uselibxml_use_internal_errors(true) anymore and so triggers PHP warnings for cases that were not triggering them before.@nicolas-grekas should this be changed ?

the fact that Alpine.js makes you write code that reports warnings in spec-compliant HTML parsers looks like an issue for alpine.js instead.

Totally agree. Just mentioning it as Im probably the first to see this since upgrading/testing the beta.

and so triggers PHP warnings for cases that were not triggering them before

I only mentioned it as the OP mentioned this should remove b/c breaks, and then my tests broke up upgrade. Im not expecting a fix, unless you think one is needed.

I suggest opening an issue instead of discussing that on a merged PR, to give it more visibility.
As hinted in my previous message, I think something still needs to be fixed.