Hello, nothing happens upon start recording. Linux Mint 18.3, both Chrome and Firefox (latest versions). No errors in web console. Chrome: only a comment about blocked cookies:
A cookie associated with a cross-site resource at <URL> was set without the SameSite attribute. It has been blocked, as Chrome now only delivers cookies with cross-site requests if they are set with SameSite=None and Secure. You can review cookies in developer tools under Application>Storage>Cookies and see more details at <URL> and <URL>.