Retract block feature breaks embedded youtube videos on iOS

[shanen]

Mahara 1.8.1
iOS 7
iPad

To replicate:

We added 6 youtube videos to a Mahara page - and set the blocks to be retractable.

The videos on iOS played back the audio but not the video, and then randomly worked.

On android, windows and OSX all browsers worked.

We edited the blocks and un-checked retractable.

The videos on the page then worked on iOS as well.

Cheers,
Shane.

[Kristina Hoeppner (kris-hoeppner)]

Niranjan, can you please take a look and see if it's still an issue for 16.10master?

[Niranjan (niranjan528)]

I have tested this on ios 10( Iphone 6s mobile device) and on ios 9.3.2 ( Ipad safari browser). The videos are playing and I can hear the audio too. Cannot reproduce it on both the devices.

Tested it on mahara demo site.