report not working in Gin/Claro admin theme

@John_B Can you please attach screenshots so that I can exactly see where it is breaking for you?
Also can you please mention the Drupal version and the steps to reproduce the issue?
Thank you!

I am on current D10, 10.2.5.

Steps: set admin theme to Claro or Gin; install the module. Set to use the external validator.nu. Vist /admin/reports/w3c_validator. Click to validate all pages.

A bit abusive I know but I was struggling to install the binaries, HTML5 validator seems to need Java, and even the Debian package for the HTML4 validator was a struggle to get working. I was not banned but the validator tended to return a 502 from time to time. Anyway I completed one run.

Reload /admin/reports/w3c_validator. See WSOD with 'Website has encountered an error, please try again later.' Check db log and see error in the description. Switch admin theme to something else, like Stark. The result of the validation run appear. Set admin them back to Claro or Gin. See WSOD again.

Thanks @John_B for providing the details.
I can replicate the issue and working on it !

I have raised the MR for resolving the issue, attaching here the screenshot of the admin/reports/w3c_validator page in gin and claro theme after applying the changes.
Please review the MR .

Thanks. Tested in both Gin admin theme (child theme of Claro), and in Stark theme. It is fine.

Thanks a lot for your contribution, fix and test

Automatically closed - issue fixed for 2 weeks with no activity.