Enable XHR access to file:// protocol in Chromium engine

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Enable XHR access to file:// protocol in Chromium engine

Postby pmk65 » Wed Jul 15, 2015 2:12 pm

In Chromium access to file:// protocol is disabled by default.
This prevents WeBuilder plugins using the Chromium engine from accessing local files.

Would it be possible to enable the Chromium command line switch "--allow-file-access-from-files" in the next release?

Some reference links:
http://peter.sh/experiments/chromium-command-line-switches/#allow-file-access-from-files
http://www.magpcss.org/ceforum/viewtopic.php?f=14&t=10892
http://magpcss.org/ceforum/viewtopic.php?f=6&t=673&start=0
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Re: Enable XHR access to file:// protocol in Chromium engine

Postby Aivars » Thu Jul 23, 2015 10:26 am

Hmm, what are you trying to achieve?
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Re: Enable XHR access to file:// protocol in Chromium engine

Postby pmk65 » Thu Jul 23, 2015 12:56 pm

What I wanted to do, was to implement an image optimizing function in my "Insert Base64 Image" plugin, by using an external optimizing program to process the uploaded image. And then read in the optimized file/data.

For security reasons XHR access to local files is disabled by default in browsers.
But since the Webkit engine in WeBuilder is not a "real browser", there's no need for that restriction.
Specially since it prevents working with files locally, which is needed in WeBuilder plugins. (That's also why the access restrictions doesn't apply to Chrome/Firefox extensions.)

Note: Could also be the "--allow-file-access" Chrome option. Im not quite sure which one enables it.
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Re: Enable XHR access to file:// protocol in Chromium engine

Postby Aivars » Thu Jul 23, 2015 4:12 pm

Alright, I'll see what can be done, I think most likely only for the next major version, during chromium engine upgrade.
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Re: Enable XHR access to file:// protocol in Chromium engine

Postby pmk65 » Fri Jul 24, 2015 3:28 pm

Aivars wrote:Alright, I'll see what can be done, I think most likely only for the next major version, during chromium engine upgrade.


No problem. I can wait.. :lol:
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