I am new to metabase, I have created sample reports and shared them, I got the iframe which is being referred in my HTML. But i do not want that iframe URL to be visible in the browser, is there a way to encrypt it?
Yes, but it is not secure, it is just a way to hide some info … You Can use tools like https://www.danstools.com/javascript-obfuscate/ to obfuscate javascript containing URL to source of mentioned iframe … 
The other option is to use embedding rather than just sharing a link.
That way, you are able to handle security in the holding page:
But I thing that he wants to just hide original URL …
Yes, i want to hide the URL.
I used this option and embedded reports to my site.
Hi! @siddarth.mine did you got any solution to hide the URL ? Please do share!