Ashley Gullen created CB-14121:
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Summary: Cannot load index.html on cdvfile:// protocol
Key: CB-14121
URL: https://issues.apache.org/jira/browse/CB-14121
Project: Apache Cordova
Issue Type: Bug
Components: cordova-ios
Environment: iOS 11.4
Reporter: Ashley Gullen
Assignee: Suraj Pindoria
In the most recent versions of iOS, the cross-domain restrictions on file: have
been tightened up. It is impossible to do things like play a video which
qualifies as same-origin (and therefore can e.g. be uploaded as a WebGL
texture). Accessing the video via the file: protocol counts it as cross-origin;
even if you use cordova-plugin-file to read it in to a blob and then use
createObjectURL(), it _still_ counts as cross-origin and ends up blocking some
features.
If we could load index.html on the cdvfile:// protocol, then we should be able
to load all subresources as relative to cdvfile:// which should then count them
as same-origin. This would also simplify development since things like fetch()
calls should work (they are blocked on the file: protocol).
However I cannot find any way to navigate to a cdvfile:// URL on iOS. Even withÂ
{code:java}
<allow-navigation href="cdvfile://*" />{code}
in config.xml, trying to navigate to cdvfile:// throws an "unsupported URL"
error. This ought to be supported.
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