Remove validation for start_url

[ccoager]

Problem Description

I understand there are issues and limitations with Firefox containers/Multi-Account Containers impacting PWA. I have found a work around using the Open external links in a container add-on. This will launch the PWA directly into the container of your choice. The only issue is the PWA start_url validation prevents you from using the syntax needed for this add-on and gives the error, "Start URL needs to be a valid URL".

I have tested this work around by editing the PWA config.json directly and can confirm that it does work.

Proposed Solution

Could you remove the validation for start_url?

[filips123]

I can try to turn it into warning or someting similar. But I'm not sure if it will work properly, as I think there is also some validation in the manifest that requires start URL to be in the scope.

[filips123]

I turned start URL validation into a warning in the next version.