This prevents the trailer_unavailable image from appearing when the
Add Movie details modal first opens and the trailer has not yet been
loaded. Instead, the app's "busy/loading" indicator is shown until
the AJAX call completes. On success, embed the trailer. On failure,
display the trailer_unavailable image.
This prevents the
trailer_unavailableimage from appearing when the Add Moviedetailsmodal first opens and the trailer has not yet been loaded. Instead, the app's "busy/loading" indicator is shown until the AJAX call completes. On success, embed the trailer. On failure, display thetrailer_unavailableimage.