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From Víctor Oliva Vidal (JIRA) <j...@apache.org>
Subject [jira] [Commented] (CB-9558) Blob schemes won't load in iframes
Date Wed, 09 Sep 2015 08:40:45 GMT

    [ https://issues.apache.org/jira/browse/CB-9558?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14736457#comment-14736457
] 

Víctor Oliva Vidal commented on CB-9558:
----------------------------------------

[~purplecabbage] This case was setting the iframe src itself to a blob.

I just made a simple example here, where I load an .html into a blob and set it as the src
of an iframe: https://github.com/voliva/iframe_blob. You can check how it does work in any
browser but not in cordova-ios.

> Blob schemes won't load in iframes
> ----------------------------------
>
>                 Key: CB-9558
>                 URL: https://issues.apache.org/jira/browse/CB-9558
>             Project: Apache Cordova
>          Issue Type: Bug
>          Components: iOS
>    Affects Versions: 3.9.0
>            Reporter: Víctor Oliva Vidal
>            Assignee: Jesse MacFadyen
>            Priority: Minor
>              Labels: cordova-ios-4.0.x
>
> 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|https://github.com/futurepress/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
> {code}
> [NSURLConnection canHandleRequest]
> {code}
> 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.



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