Please post some example here in this topic. If it's necessary you can make this topic private. i need to see how do you embed it and what kind of URLs you embed.

Here are 2 links.

On my site they both do not work the problem seems it converts to https from http after i save the post.

As per this link i can understand that it does not work in html but first link must work as on your site.
Edit: removed link

Please don't copy HTML content and images and paste in editor. You don't see but it brings ton of unnecessary HTML in content. You should only put a clean URL, nothing else. This is what you've put in forum post, please see the video: https://www.screencast.com/t/BQEZ2PpQd

This is not correct. The content should be a clean URL, nothing else.

Yes i know about that anyway i found the problem it is caused by force SSL code added by SG Optimizer will have to find a solution to this.

Thanks for your help, topic solved.