How to stream video over internet

I want to share a video on my iphone. I remember the video be streamed when the recipient clicks the link which I sent from mycloud app.
Now I found I can’t do that again. When I open the link on imessage, I receive a black page, there is a play button with a / on it. Similar thing on pc, except when I click the link, the video file is downloaded.
so confused, I do remember I have streamed successfully before.

Hi tomyin,

It is recommended to check the video file format whether it is supported by the My Cloud Mobile App or not. You can refer the link given below to know about the supported video formats by the My Cloud Mobile App.