No response in Chrome on Windows 10

I’ve installed the Chrome extension and it says the connection to JabRef is successful and that it has access to sites like ACM digital library and IEEExplore. But when I click on the JabRef icon in the extensions panel, it opens the menu as if I had right-clicked. It also opens the menu when I do right-click. There is an error in the JabRef log:

Access to XMLHttpRequest at ‘https://repo.zotero.org/repo/metadata?version=5.0.0&last=0’ from origin ‘chrome-extension://bifehkofibaamoeaopjglfkddgkijdlh’ has been blocked by CORS policy: No ‘Access-Control-Allow-Origin’ header is present on the requested resource.

Does this extension rely on cross-site scripting via zotero.org? That is a major security hazard and will be blocked by any well-configured browser. Is there a safe workaround here?

Same problem.Using Firefox the plug-in works as expected