Warning about preload not used because of script type mismatch

[allan-farrell]

Is there any way to skip the preload tag generation? They just keep generating warnings in my app:

A preload for 'http://ratel.arts.mun.ca:3000/vite-dev/admin/application.js' is found, but is not used because the script type does not match.

Thanks for the gem!

A

[ElMassimo]

Hi Allan!

Preload tags can be disabled by passing skip_preload_tags: true to the vite_javascript_tag helper. However, it seems like you are running into a different scenario.

Rails generates early preload hints incorrectly for type="module" scripts (uses rel=preload instead of rel=modulepreload).

I made a pull request to Rails fixing this, and it has been merged, but I'm not sure whether fixes are backported.

To disable that warning, you could:

• Upgrade to a version that includes this patch (not released yet)
• Patch javascript_include_tag manually to include the fix (not ideal)
• Disable early hints in development/production: config.action_view.preload_links_header = false