Leading Slash Problem in v13

[intertain]

Hi,
I have a problem with the leading Slash in a new TYPO3 13 installation. On regular sites the leading slash in front of the .css file is set correctly, but on some sites with plugins (also felogin Plugin), the leading slash hides after reloading the site. If T3 cache is cleared, one time it is created correctly and after reload the slash is hidden again:

<link rel="stylesheet" href="assets/app.4d4b36b8.css?1753368078" media="all">

.setPublicPath is setup correctly with /assets.

Any idea what could solve the problem?

Yours,
Michael

[colorcube]

I have the exact same thing with TYPO3 12
typo3-encore v6.0.1
composer install

I think Michael means "pages" not sites.

In my case: Form and DoubleOptIn plugin (https://github.com/linawolf/form_double_opt_in);

• clearing the FE cache
• reloading the page with DoubleOptIn plugin
  -> everything is fine
• reloading the page with DoubleOptIn plugin
  -> / is missing in assets urls

[mbrodala]

I can confirm the issue in TYPO3v12. It doesn't seem to be related to other plugins at all, the page I see the error on uses a plain custom CE with Encore assets. Reloading the page from TYPO3 cache leads to errors due to the missing leading slash.