When searching for extensions in the marketplace and trying to read the Details pane, nothing is shown. For any extension, that is.#
E.g.:

It's caused by the server settings that are hosting the app blocking iFrame displays (https://github.com/codercom/bugs/issues/360)
This should be resolved in v2. We had some CSP issues in v1 but they're all resolved now.
This is happening for me on latest master and Safari on Catalina.
Yeah unfortunately they don't show up on Safari at the moment. We're tracking it here: https://github.com/cdr/code-server/issues/1317
Most helpful comment
It's caused by the server settings that are hosting the app blocking iFrame displays (https://github.com/codercom/bugs/issues/360)