Skype for business webapp is a quick method to join meetings invitation sent by remote parties. Today when one of our user (with Windows 7 & IE8) tried to join the meeting using Google Browser (latest version) (with S4B webapp plugin installed) , the window stuck at Loading … as showed in the image below …
After some R&D, it found that if you have IE 8 or below, you must upgrade to new version.
After we upgraded IE from 8 to 11 , the S4B webapp worked smoothly.