PWAs have restricted access to Cross Origin Resources

[dellagustin]

A PWA podcast aggregator that does not want to depend on a server side would require access to resources from other domains.

A few use cases:

• Access to search engine APIs
• Access to the content of RSS feeds
• Access to the binary content of media for extraction of metadata.

This resources are owned by 3rd parties and the resource owners may not have allowed access from other origins.

Related issues

• in W3C
  • Standard for acquiring user permission for CORS override w3c/strategy#212

Possible workarounds

Public directories with APIs and support for CORS could be used.
One such example is podcastindex.org.
https://gpodder.net/ does not support fetching episodes from a given feed, only fetching episode info for a single episode based on its media URL (I could not test this properly)

Resources

• https://developer.mozilla.org/pt-PT/docs/Web/HTTP/CORS