"The Vimeo video could not be loaded." error in Safari in case you limit your video embedding to specified domains
Related content type: Interactive video
Steps to reproduce:
You'll need a vimeo premium or business account.
Upload a video to vimeo and change "Embed (Where can the video be embedded?)" field to: "Specific domains" and specify your domain.
Embed this video on your website (our website using Drupal 7 version of H5P module - 7.x-1.50 ) into an interactive video type h5p content.
Open your page in Safari browser (both OSX Safari and iOS Safari affected).
You will get "The Vimeo video could not be loaded." error.