It looks like when Google Cloud Storage serves the desired object for a NotFoundPage, it includes the status code 404.
Is there any way to set it so that the content is served with a 200 status? This will make it easier for any single page applications I deploy to the bucket to manage their own deep linking.
It appears as though this is currently a feature request over at the Google Cloud issue tracker: https://issuetracker.google.com/issues/151212194
I encourage anyone who arrives here to head over there and star the issue and also comment to help get this some priority.