Makeblock Editor Compiler Issue


I am a secondary school teacher and have been using the makeblock web editor ( for a few years now and it has been working a treat. Like most schools, we have a firewall and filtering in place and I remember that to make the compiler work, we had to whitelist a number of urls. The problem is that just a few weeks ago, in the process of updating/maintenance etc., the school lost this list of whitelisted urls and the compiler is no longer working.

My questions: Does anyone know the specific list of urls accessed during the compiling process? Our school filter is blocking some of these and I cannot for the life of me find any reference to the list. I found the list online a few years ago.

I have already tried whitelisting the two sites referred to here (mBlock on Chromebook stuck on compile/upload) but still no luck.

Any help would be very much appreciated.