#PS-1936

set a fixed height for the iFrame due to known iOS8 issue where iframe with height 100% wrapped by div with fixed size gets the entire content height instead of the div height (https://www.google.co.il/search?q=iOS+iframe+height+issue&oq=iOS+iframe+height+issue&aqs=chrome..69i57j0j69i61l2.237j0j4&sourceid=chrome&es_sm=91&ie=UTF-8)

Note - this will disable responsiveness. However - we don't support responsiveness in iPhone and iPad. If we will have to support it in the future- we can set the height back to 100% on the layoutReady event.