correct url not showing up in iframe copied from embed button

Try changing the code property in the sharing option in jwplatform.js to encodeURIComponent of whatever you want to be the exact iframe content

Example:now you have the code as %3Ciframe%20src%3D%22http%3A//content.jwplatform.com/players/MEDIAID-6gKQPrHW.html%22%20width%3D%22480%22%20height%3D%22270%22%20frameborder%3D%220%22%20scrolling%3D%22auto%22%3E%3C/iframe%3E

Now try to decode this with decodeURIComponent(code) which evaluates to :

<iframe src="http://content.jwplatform.com/players/MEDIAID-6gKQPrHW.html" width="480" height="270" frameborder="0" scrolling="auto"></iframe>

You should try changing both code and link to your actual video link and code. just encode whatever content you want to be as code with encodeURIComponent or test the current one with decodeURIComponent, also keep the correct link in the link property.

Probably you are making a mistake when you say that:

• //example.com it is not a valid url... - Nope. It's absolutely valid url. Even, it's better type of url (called schemeless url, without http: prefixing).

• ...there should be video url (mp4) inside SRC... - No again. iframes are for web-pages (including .html pages), or not files (like .mp4 or other file extensions), so that is the correct form of url.

I think your problem is something different:. Maybe that video file is deleted from server? Or something doesn't actually work on that destionation url? Check problems there.

p.s. you should have posted an example url which works (just change domain to example.com if you dont want to share it).