"LogicException: The controller result claims to be providing relevant cache metadata..." error

@goodboy -- I'm not able to reproduce this error. Could you provide reproduction steps that start from a clean install of just Drupal 10 and this module? Otherwise more detailed information about the configuration where you are having this issue or a complete backtrace of the error would be helpful.

I had this also. The thing is this: When I upload IMAGES: via the JSON:API process described here: https://www.drupal.org/node/3024331 → it seems that the jsonapi_image_style module creates a `CachableResponse`. which will throw an exception in the file:

File: EarlyRenderingControllerWrapperSubscriber.php

      // If a non-Ajax Response or domain object is returned and it cares about
      // attachments or cacheability, then throw an exception: early rendering
      // is not permitted in that case. It is the developer's responsibility
      // to not use early rendering.
      elseif ($response instanceof AttachmentsInterface || $response instanceof CacheableResponseInterface || $response instanceof CacheableDependencyInterface) {
        throw new \LogicException(sprintf('The controller result claims to be providing relevant cache metadata, but leaked metadata was detected. Ensure you are not rendering content too early. Returned object class: %s.', get_class($response)));
      }
      else {
        // A Response or domain object is returned that does not care about
        // attachments nor cacheability; for instance, a RedirectResponse. It is
        // safe to discard any early rendering metadata.
      }
    }

As info: I have an entity where uploading any type of files is okay. When I upload a Image the error occurs and the CachableResponse has a content of:

{"jsonapi":{"version":"1.0","meta":{}},"data":[{"type":"file--file","id":"c4837397-5e48-41d6-9002-60f68d0e02f5","attributes":{"drupal_internal__fid":721,"langcode":"en","filename":"13.jpeg","uri":{"value":"private:\/\/2024-02\/13_1.jpeg","url":"\/system\/files\/2024-02\/13_1.jpeg?token=nOrLl1pNJflU-H2bVCtDthM6moemK64Q9MDQaN6PRCc&timestamp=1708955605"},"filemime":"image\/jpeg","filesize":8020217,"status":true,"created":"2024-02-26T13:53:25+00:00","changed":"2024-02-26T13:53:25+00:00","image_style_uri":{"avatar":"http:\/\/foobar.local\/system\/files\/styles\/avatar\/private\/2024-02\/13_1.jpeg?token=Rt1fiI8d14VxngMdOnP9r745AXDBhH6VaTcFFckMzIs&timestamp=1708955605&itok=LM9rqf7H","max_650x650":"http:\/\/foobar.local\/system\/files\/styles\/max_650x650\/private\/2024-02\/13_1.jpeg?token=tNO_kBMwcuLRAjt2I9pUX05glzRjdCmK88dC6QVKOhQ&timestamp=1708955605&itok=QYcmOtOQ","thumbnail":"http:\/\/foobar.local\/system\/files\/styles\/thumbnail\/private\/2024-02\/13_1.jpeg?token=l4ViEWtsOLHCRn1G8b3v7NZGhBzZXoPwm_jfys1-OlY&timestamp=1708955605&itok=Oypb40X-","usericon":"http:\/\/foobar.local\/system\/files\/styles\/usericon\/private\/2024-02\/13_1.jpeg?token=szA6cAFC67hB-vPw9zZMvdkhWiX5e4xRBW4DxajFJk0&timestamp=1708955605&itok=SIMJP2lO"}},"relationships":{"uid":{"data":{"type":"user--user","id":"cfecacbc-701e-4bb6-83e3-2a8b15a83fbe","meta":{"drupal_internal__target_id":32}}}}}]}

At least for me, this happens. Uploading 1 or more PDF. No problem. Uploading JPGs: Exception.

I checked: when jsonapi_image_styles is uninstalled it works as expected.

I digged a bit deeper.

The ImageStyleNormalizedFieldItemList::computeValue is called in the Validationphase of the FileUpload call, which I don't understand, because, what exactly are you validating there? No idea. Anyways and the same method is called in the serializition Phase, which makes more sense. The thing is even with stepping through the process, I do not understand why it fails, because jsonapi is supposed to anser an fileupload with a json string of the newly created file--file objects.

It bothers me even more, that the upload of the image and the attachment to the entity with the reference seem to work perfectly. Only an EarlyRendererWrapperSomething is bothered and throws an exception. :-(