Automatically derive manifests from app pages

[slightlyoff]

The current submission form asks for a PWA Manifest URL (e.g. https://airhorner.com/manifest.json, not https://airhorner.com/). It seems as though it'd be much more user-friendly to be able to submit any URL from the PWA which points at the Manifest. The tuple of (discovered) manifest location and the start_url from the manifest should be enough to uniquely identify the app.

[andreban]

Agreed. We were looking into implementing this by looking for the manifest link on the page, but it seems it can also be added using Javascript. #190 was tracking this, but I didn't realize we had closed it.

[juliantoledo]

We have support to submit by start_url, however we are using the manifest URL and not the tuple as unique identifier. We'll change it.

[ithinkihaveacat]

[manifest_url, start_url] doesn't uniquely identify a PWA if a site versions its manifest. This is done by e.g. https://weather.com/weather/today/l/12345 which currently has a manifest of https://weather.com/weather/assets/manifest.507fcb498f4e29acfeed7596fe002857.json.

This might be an unanticipated side effect of an over-enthusiastic build process, but nevertheless, "versioning" the manifest URL and serving it with an infinite expiry doesn't seem like an outrageous thing to want to do.

[slightlyoff]

Weather.com should not version these URLs (same for their serviceworker). This is a bug with their site, not with how we identify apps.

…

On Mon, Jun 19, 2017 at 6:12 AM, Michael Stillwell ***@***.*** > wrote: [manifest_url, start_url] doesn't uniquely identify a PWA if a site versions its manifest. This is done by e.g. https://weather.com/weather/to day/l/12345 which currently has a manifest of https://weather.com/weather/assets/manifest.507fcb498f4e29ac feed7596fe002857.json. This might be an unanticipated side effect of an over-enthusiastic build process, but nevertheless, "versioning" the manifest URL and serving it with an infinite expiry doesn't seem like an outrageous thing to want to do. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#323 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAF8M81nEOI1M1mFa0rzGizcFJipfqe6ks5sFnOtgaJpZM4LdSFa> .

[adewale]

See also: w3c/manifest#586