Gutenberg-mobile: [iOS] Media & Text block upload progress hangs with airplane mode

[mkevins]

Describe the bug

Upload progress bar gets stuck when starting upload with :airplane: airplane mode on.

To Reproduce

• Tap on the Media & Text block placeholder or edit button in the toolbar
• Turn on :airplane: airplane mode
• Tap option ‘Choose from device’ and choose an image

Expected:

You should see a failure message with an option to retry.

Actual:

Instead, the progress bar remains at the starting position, and never moves. However, tapping the image still provides an option to restart the upload.

Screenshot

Smartphone:

• Device: iPhone11
• OS: iOS 13.3.1

Additional context

The failure message sometimes briefly becomes visible, and then the block returns to a hung progress bar immediately afterwards. One possibility is that events from the parent app are somehow received over the bridge in the wrong order, though this has not been investigated.

[mkevins]

Nice work fixing this Gerardo! :tada: