Video plays everywhere except of in Safari

Not sure if this is a bug or my fault.

Using the Bricks video block, we offer a video, with sound and it works everywhere except of the Safari browser. It works on iPhone and Mac when using Chrome of Firefox but when using Safari it only shows a black video area with a play button thats crossed through with a singe line.

image

What might be the problem here? Thanks.

Hi Alex,
Which format is the video?

Apparently it is a format that is not supported by Safari:

https://www.google.com/search?q=safari+video+play+button+crossed+out&oq=safari+video+crossed+&sourceid=chrome&ie=UTF-8

Always Safari making problems lol. Thanks, I uploaded the video to Vimeo to save myself the time from experimenting with the formats.