Hi all, i have an issue about embed code on e-Learning apps.

Although i can add embed code widget on my local computer to a e-learning web-page, it was not working on server side. It returns an error like " for technical reasons, this cannot be added here".

I assume that there is an security blocking, but i dont know why it's blocked. 

Do you have an idea or solution for this problem ? I added an image about that: Its Turkish, but as i said error says " For technical reasons ...bla bla bla."