I had a similar error "Error: Failed to load lab. Please refresh this page to try again or contact support for help"
The issue happened on Chrome & Firefox. I updated Firefox to version 52.6.0 (64-bits).
Also these plugins were updated to versions shown below:
Shockwave Flash 28.0 r0
Java Plug-in 11.161.2 for Mozilla browsers
Those updates make Lab exercises work on my Firefox browser. I haven't updated Chrome so far and the issue still happens on it. I hope it helps.
Hi,
I had a similar error "Error: Failed to load lab. Please refresh this page to try again or contact support for help"
The issue happened on Chrome & Firefox. I updated Firefox to version 52.6.0 (64-bits).
Also these plugins were updated to versions shown below:
Shockwave Flash 28.0 r0
Java Plug-in 11.161.2 for Mozilla browsers
Those updates make Lab exercises work on my Firefox browser. I haven't updated Chrome so far and the issue still happens on it. I hope it helps.