Copy / Paste doesn't work into or out of a Unity (and NGUI) WebGL game. As far as I can tell this is a JS issue by (security) design. One of the top results for this issue on google points to a closed bug : https://issuetracker.unity3d.com/is...s-not-support-copy-slash-paste-on-webgl-build which incorrectly claims it's 'fixed' It sounds like from various other snippets and hints from Unity staff in the forums like it *should* be possible to make this work by some combination of special keyboard access mode and having a hidden text field on the page. Has anyone actually done this successfully? Or have some other working method for copying/pasting text into/out of Unity? I'm looking for a working example implementation. Thanks!