How to access iframe.contentWindow.document of a nested iframe inside an iframe? [migrated]

I’ve been trying all day to nest created iframes and access their contents, but security restrictions dont let me. Is there a way? I shared my code and everything i tried so far in a codepen. https://codepen.io/serapath/pen/qBGbpMG?editors… Continue reading How to access iframe.contentWindow.document of a nested iframe inside an iframe? [migrated]

How to allow users to securely use their private key to decrypt data in the browser [duplicate]

I’m working on an application where encrypted data can be stored on the server. Users can do this by obtaining public keys from the server, and use them to encrypt data locally before sending it to the server. This encryption feature provi… Continue reading How to allow users to securely use their private key to decrypt data in the browser [duplicate]