Stuck on "Starting webworker script..."

1536709903
Whenever I try to add a script to my games, the new sandbox sticks on "Starting webworker script..." and goes nowhere after that. I've tried removing all scripts, then re-adding, with the same result. I've tried multiple games and multiple browsers and multiple computers. Any thoughts?
1536712705
The Aaron
Pro
API Scripter
The web worker scripts come from a character sheet. Do you have a custom sheet?  Or what character sheet are you using? Additionally, are you sure it isn’t working? API scripts don’t nexeasarily have any output. What scripts are you trying to use?
1536713418

Edited 1536713436
The Aaron said: The web worker scripts come from a character sheet. Do you have a custom sheet?  Or what character sheet are you using? Additionally, are you sure it isn’t working? API scripts don’t nexeasarily have any output. What scripts are you trying to use? I was using the 5e SRD sheet script (though I tried a different character sheet on a different module). And I was adding the DND Beyond script. I know that one didn't work (but it also never gave me an error). Also, the sandbox never told me it was ready? I thought I recalled it saying when it was done loading.
1536723601
The Aaron
Pro
API Scripter
It should say something like “Spinning up new sandbox... Try disabling all the scripts abs adding in just this one: log("==> API Starting... <==");on("ready",()=>log("==> API Ready <==")); That should print 2 messages to the API Console. 
1536725213
Okay, well thanks, I did that and it seems to be working now. I wonder if I missed something cutting and pasting the beyond script that screwed me up even when I redid it. But your script reassures me so I'm going to use it on every game now ha ha. Thanks so much!
1536755026
The Aaron
Pro
API Scripter
Great!