Browsers block programmatic paste (document.execCommand('paste') is a no-op and
document.queryCommandSupported('paste') returns false), so supportPaste is effectively
electron-only. Keeping it false in browsers is intentional: the ctrlcmd+v keybinding stays
unregistered, so native paste events reach widget-level listeners (e.g. the navigator), and
menu paste is handled by dedicated handlers using the async clipboard API.
Browsers block programmatic paste (document.execCommand('paste') is a no-op and document.queryCommandSupported('paste') returns false), so supportPaste is effectively electron-only. Keeping it false in browsers is intentional: the ctrlcmd+v keybinding stays unregistered, so native paste events reach widget-level listeners (e.g. the navigator), and menu paste is handled by dedicated handlers using the async clipboard API.