
SPFx App webpart is blocked in various browsers
Recently, I stumbled across a strange behavior when running self-developed SPFx webparts in various browsers. When the SPO app was deployed, it worked well with Single-Sign-On, but in some browsers, the webpart was blocked. Instead, a grey box saying “login.microsoftonline.com refused to connect.” was displayed. I experienced that behavior in Chrome, and Edge, while FireFox, Safarai and Opera showed the webpart. Also, there was a different experience when working in the normal mode, or in the In-Private mode. If that happens to you, check out the solution here. ...








