Terminal ascii escape for hyperlinks

I am not able to use hyperlink escape \e]8 in the theia’s terminal. Is it normal?

I didn’t see this escape sequence on the following page: https://www.xfree86.org/current/ctlseqs.html

What terminal emulator is this escape sequence designed for?

@lperraud you may want to check if this sequence is supported by https://github.com/xtermjs/xterm.js/ and open an issue there if not?