Is there a web terminal emulator with an api that I can send and display it terminal programs while putting the program name in the tab title?

Is there a web terminal emulator with an api that I can send and display it terminal programs while putting the program name in the tab title?

One where I can pass it a command from javascript like "ls\n" and it would show me the contents of the current directory. If I run "nano newfile\n", it would display "newfile" in the browser tab?

I prefer one that doesn't need to be online and can run on the client side with a browser linux kernal, user linux kernal (javascript, jquery or any technology), or from my server throw php.

But if needed I can, and will resend the data once it reconnects (From either the user saving the file or the browser storing it as a cookie or webstorage)