Set iframe src to content:// url failing silently

[thebarge]

Hi,
I really appreciate this plugin -- it's made my life a lot easier! I do have one question/potential issue.

We have set up a simple app, and the premise works great -- we can load images from the expansion pack, etc.

However, one of the key things we are trying to do is set an iframe's src to an html file that is in the expansion pack, and this is failing silently. Our initial assumption was that this was some type of security restriction, but we followed the instructions in the readme at https://github.com/agamemnus/cordova-plugin-xapkreader/blob/cordova-5.3.1/README.md. We are using your whitelist plugin.

We are setting the iframe's src using simple javascript: $("iframe")[0].src = "content://com.cloudkid.expansion/main_expansion/(path)/index.html".

We aren't seeing any output in any log, either using adb logcat or inspecting it via Chrome.

We have also tried with and without the crosswalk plugin, and it makes no difference.

We can get the contents of the html file in the expansion pack using jQuery.get("content://(path)/index.html") and verify that the html file exists.

Is this a known issue? We can create a simple version of our app with non-proprietary content if that would help diagnose things. Please let me know if you need more details. Thanks!

[agamemnus]

Shouldn't you have a . after the 0?

If it's not that, go ahead and make a sample project that I can run. I'll
check it out.
On Dec 14, 2015 11:19 AM, "Matt Bargar" notifications@github.com wrote:

Hi,
I really appreciate this plugin -- it's made my life a lot easier! I do
have one question/potential issue

We have set up a simple app, and the premise works great -- we can load
images from the expansion pack, etc

However, one of the key things we are trying to do is set an iframe's src
to an html file that is in the expansion pack, and this is failing silently
Our initial assumption was that this was some type of security restriction,
but we followed the instructions in the readme at
https://githubcom/agamemnus/cordova-plugin-xapkreader/blob/cordova-531/READMEmd
We are using your whitelist plugin

We are setting the iframe's src using simple javascript: $("iframe")[0]src
= "content://comcloudkidexpansion/main_expansion/(path)/indexhtml"

We aren't seeing any output in any log, either using adb logcat or
inspecting it via Chrome

We have also tried with and without the crosswalk plugin, and it makes no
difference

We can get the contents of the html file in the expansion pack using
jQueryget("content://(path)/indexhtml") and verify that the html file exists

Is this a known issue? We can create a simple version of our app with
non-proprietary content if that would help diagnose things Please let me
know if you need more details Thanks!

—
Reply to this email directly or view it on GitHub
#38.

[thebarge]

Hi-
Yeah, that was just bad copy/pasting into the github issue. I made a slimmed-down project, attached as a zip. I have a theory that it has to do with the mime type of the assets, but that theory may be wrong. Thank you so much for any insight you have, I really appreciate it; I've been looking at this for a while now with no luck.

expansionApp.zip

[agamemnus]

Also, have you tried just removing the whitelist plugin altogether?

[agamemnus]

(I think some changes to the Cordova code might be needed, but I don't remember..)

[thebarge]

Good idea - I tried removing the whitelist plugin, but no change.

[agamemnus]

And when you removed it, you also edited some other code to make that work? Last time I tried removing the whitelist plugin, it wouldn't compile.

[thebarge]

Yep, it compiled -- I did have to comment out a line in the config.xml -- <plugin name="cordova-plugin-whitelist" spec="1" /> otherwise the build process would try to re-add the plugin.

[agamemnus]

Ok, I'll try the zip soon.

[thebarge]

Thank you so much, I really appreciate it. 😃

[agamemnus]

The local load is working correctly?

[agamemnus]

What happens when you don't use any parameters? ("?test") I think it is because it can't handle parameters.

[thebarge]

Hi, the url parameters don't matter, I should have stripped that out of my test.

The local load works correctly for me - if you tap on the 'game 1' button you should see some text overlaid on top of the image. (The text is the content from www/assets/games/localGame/index.html.)

[thebarge]

Ha! I figured this out. My suspicion about the mime-type was correct -- to test in a hacky way, I switched the mime-type from "vnd.android.cursor.item/asset" to "text/html" in XAPKProvider, and commented out the mime-type check in DownloadThread (lines ~679-685). Doing that, I was able to see basic html, at least. Progress.

I'm going to fork the code for now (https://github.com/SpringRoll/cordova-plugin-xapkreader). Thank you!

[agamemnus]

I wonder if there's an easy way to just make it use the correct mime-type... I will think about this, but let me know about your progress too, so I can integrate it.