@Maria Rumynskaya - Are you getting this exact error at the top of your Miro board: 

If so, I will move this post to this existing post:

https://community.miro.com/peer-support-45/incorrect-url-error-when-embedding-a-wordwall-6132

Hello! It looks this way. I have no idea why it randomly happens.

@Maria Rumynskaya - Looking at the full embed code at liveworksheet’s website, it does not meet Miro’s requirements as there is no <iframe> code - I am also 99% certain the JavaScript code would always be blocked: 

I think the best you’re going to do is to just link to the sheet from the Miro board:

Thank you! Sorry for having disturbed you! My mistake(

Best regards.

@Maria Rumynskaya - No trouble at all - surely this post will help others down the road