A unity package containing the copied plugin from: https://github.com/Trisibo/unity-webgl-copy-and-paste
This scripts adds copy-paste support by injecting scripts onto input fields and TextMeshPro input fields.
This package is provided through OpenUPM, to install it using the CLI you can perform the following:
$ openupm add eu.netherlands3d.webglcopypaste
or, you have to add https://package.openupm.com
as a scoped registry with, at least, the following scopes:
eu.netherlands3d
The script will automatically initialize using the RuntimeInitializeOnLoadMethod attribute.