Symfony version(s) affected

7.1.1

Description

PHP 8.2:

PHP 8.3:

How to reproduce

Throw an exception on PHP 8.3 and make sure that the error handler catches and renders it on an HTML page.

Possible Solution

In #51586 the rendering code was changed to replace all spaces with  , even those within HTML tags. That ultimately breaks the rendering.

I quickly tried to remove that replacement, change .trace-code li code to use white-space: pre; and change the final trim() to rtrim(), but the result is not quite sufficient:

Presumably something in the multiline splitting logic needs to be adjusted.

Additional Context

No response