I'm not sure which web terminal is used by coder, but it would be excellent to support OSC52 (copy/paste) backhaul to populate the users local clipboard.

Decent 2017 overview:

• https://medium.com/free-code-camp/tmux-in-practice-integration-with-system-clipboard-bcd72c62ff7b

Terminal IDE / Editor Application support:

• standalone: https://github.com/jirutka/tty-copy#supported-terminals
• vim: https://github.com/ojroques/nvim-osc52#nvim-osc52
• Emacs: https://chromium.googlesource.com/apps/libapps/+/HEAD/hterm/etc/osc52.el

Terminal+Muxer Support:

• tmux: https://github.com/tmux/tmux/wiki/Clipboard#the-clipboard
• mosh: https://github.com/mobile-shell/mosh/blob/03087e7a761df300c2d8cd6e072890f8e1059dfa/src/terminal/terminalfunctions.cc#L594-L600

Gnome Terminal / VTE story:

• Initial 2018 request : https://bugzilla.gnome.org/show_bug.cgi?id=795774
• 2019 migration into gitlab: https://gitlab.gnome.org/GNOME/vte/-/issues/125
• 2020 working patch: https://andrewmzhang.com/blog/2020/osc-52-patch-for-vte-0425/

Web library support:

• hterm: https://chromium.googlesource.com/apps/libapps/+/HEAD/hterm/docs/ControlSequences.md#osc
• wezterm: https://github.com/wez/wezterm/blob/main/docs/escape-sequences.md#operating-system-command-sequences