[CB-9558] Blob schemes won't load in iframes

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.9.0
• Component/s: cordova-ios
• Labels: cordova-ios-4.0.x
• Assignee: Jesse MacFadyen
• Reporter: Víctor Oliva Vidal
• Created: 26/Aug/15 13:54
• Updated: 23/Aug/18 07:07
• Resolved: 17/Sep/15 21:47

Description

Blob schemes won't load in iframes, even though blob:* is whitelisted.

This is needed for special cases, like when using an epub reader (ePub.js), that downloads an epub, extracts it to a blob and displays it in an iframe.

This currently works perfectly in cordova-android, but not in cordova-ios.

I've debugged why it happens... the Whitelists says the scheme is allowed and the URL is allowed, but then

[NSURLConnection canHandleRequest]

returns false, thus cancelling the request. Hardcoding "blob" as an allowed scheme (like it's currently done with mailto, tel and sms) fixes this issue. I was about to put a pull request in github when I saw your contributing guidelines.