I’m experiencing problems with the structure editing window functionality. The conversion buttons for SMILES and molblock formats are not functioning correctly.
It seems that in the browser you are using, navigator.clipboard is not available.
This can be due to various security reasons, which prohibit any web app from using the clipboard and modifying it.
Are you using HTTPS for your server? using unsecure HTTP can cause unavailability of clipboard API. In simple terms, browser is prohibiting Datagrok from copying anything to clipboard, probably because of HTTP. Bellow is the link to similar discussion on stackoverflow:
If you are using HTTP and internally this is fine, what you can try is to set the chrome flag such that it knows your Address for Datagrok is secure: