[ONEM-29845] - changes from upstream to support mp2t for running sample app for shaka

[gowthami-cl-infosys]

Created a Sample App for Hlsjs PlayReady 4.0. The sample app is working fine in Microsoft Edge Browser. But in Sagemcom its showing Error loading playback.
So tried whitelisting url using following steps:

ssh into Sagemcom and vi /etc/WPEFramework/plugins/WebKitBrowser.json
added "mixedcontentwhitelist":"[{"origin":"https://.", "domain":["http://"]}, {"origin":"http://.", "domain":["http://"]},{"origin":"http://.", "domain":["https://*"]}]",
Restarted wpeframework: systemctl restart wpeframework
Using thunder UI I have ran the sample app

After whitelisting also its showing Error loading playback.