Displaying iFrame content on Android

Question

Displaying iFrame content on Android

modecolems opened this issue 9 years ago · comments

Hi guys,

I'm testing Readium SDK on Web, iOS and Android and I'm facing a problem on the Android platform. The reader cannot display iFrame content on Android while it works on the Web and on iOS.

Thx for your help,

Regards.

Mory.

Daniel Weck · Answer 1 · Mon Apr 27 2015 21:10:27 GMT+0800 (China Standard Time)

This looks like a bug fixed a few days ago that affected pre-KitKat Android devices only (i.e. non-Chromium)
Are you using the latest code from the develop branch?

Mory Doukouré · Answer 2 · Mon Apr 27 2015 21:23:43 GMT+0800 (China Standard Time)

Hi, I'm using the master branch, but I got the bug on Lollipop too. I'll try the last develop branch.

Thx for the fast answer.

Daniel Weck · Answer 3 · Mon Apr 27 2015 22:05:39 GMT+0800 (China Standard Time)

This is the bugfix I was referring to readium/SDKLauncher-Android@bf9d6c7 , as you can see it only affected the loadUrl() WebView API used by Android < KitKat.

If loading/rendering the HTML spine item still fails, could you please privately share the EPUB so I can investigate further? (this could be a bug related to regular expression matching of the head element)

Mory Doukouré · Answer 4 · Tue Apr 28 2015 16:29:31 GMT+0800 (China Standard Time)

Hi Daniel

Still fails on Android while this can be rendered on iOS and Web version. How can I share the EPUB to you ?

Regards

Daniel Weck · Answer 5 · Tue Apr 28 2015 16:47:33 GMT+0800 (China Standard Time)

@modecolems my email address is daniel.weck@gmail.com

Ric Wright · Answer 6 · Tue Apr 28 2015 23:16:52 GMT+0800 (China Standard Time)

Dropbox.com is also good when the EPUB is too large for email (or blocked by a spam gateway since it is a zipfile under the covers).

Mory Doukouré · Answer 7 · Tue Apr 28 2015 23:20:19 GMT+0800 (China Standard Time)

It was pretty small, so I sent it by email. Did you receive it ?

Daniel Weck · Answer 8 · Tue Apr 28 2015 23:42:26 GMT+0800 (China Standard Time)

@modecolems thank you for sharing the EPUB. There is an XHTML error in ext/quiz/index.html, I believe. Please add a CDATA section to your script tags, e.g.:

<script>
//<![CDATA[
...
...
//]]>
</script>

...or escape the ampersand & characters :)

Let us know if this solves your problem, thanks!

Mory Doukouré · Answer 9 · Wed Apr 29 2015 00:03:59 GMT+0800 (China Standard Time)

Even if I delete all script sections and only keep HTML content, it can not be displayed on Android :

Daniel Weck · Answer 10 · Wed Apr 29 2015 00:06:07 GMT+0800 (China Standard Time)

Interesting. By the way, I removed the code that injects the navigator.epubReadingSystem Javascript into loading iframes, but the error persists. I wonder if it has anything to do with the fact that iframe elements have an object parent element?

Mory Doukouré · Answer 11 · Wed Apr 29 2015 01:38:54 GMT+0800 (China Standard Time)

I don't think so cause as I said, it works on the readium reader version for iOS and Web (and on others epub reader). It only fail to render on the Android version.

Daniel Weck · Answer 12 · Wed Apr 29 2015 01:42:33 GMT+0800 (China Standard Time)

Can you please try with the .xhtml extension instead of .html? Many thanks!

Mory Doukouré · Answer 13 · Wed Apr 29 2015 15:15:15 GMT+0800 (China Standard Time)

Hi,

Still not rendering with the .xhtml extension.

Daniel Weck · Answer 14 · Wed Apr 29 2015 15:54:49 GMT+0800 (China Standard Time)

Okay, good to know. I have just finished updating the ROM on my Android device, I am still on KitKat 4.4.4 / CyanogenMod 11 (Chromium-based web browser / WebView). I will run some tests again, using Chrome device inspector to show the HTTP content-type received by the WebView (should be XHTML, but will try with HTML to see if it helps).

Mory Doukouré · Answer 15 · Wed Apr 29 2015 15:56:58 GMT+0800 (China Standard Time)

Ok thx for testing. By the way, I tried on several devices running Android OS from 4.4 to 5.1. Same issue for all.

Regards.