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Helper I
Helper I

[HELP]Failed to execute 'importScripts' on 'WorkerGlobalScope': The script at...

I want to integration ACE Editor( )   in PowerBI,but got error: 

error infoerror info

got warning in HTML: 

right statusright status

no warning in powerbi: 

wrong statuswrong status

Super User
Super User

Hi @luojiandan_bi,

Because custom visuals are executed in sandboxed iframes, they have no origin and loading additional scripts via workers is not supported. I have spent a lot of time trying to integrate editors into visuals and the good ones all need to use workers - it's not possible to package the workers in a way that allows them to be loaded at execution time. Ace is not my first choice, and I hope to be able to use something else in time, but I have managed to integrate it and have it working for the JSON mode at least for now.

With Ace you have two options that can realistically work:

  1. Load the desired workers from a CDN without CORS restrictions at execution time (as again, the iframe sandbox means that a remote location has to allow requests from any domain).
  2. Use Ace with the useWorker: false property and import an appropriate completer. For JavaScript, I think you might need to use the ace-builds package, with ace-builds/src-noconflict/mode-javascript.js (and any others that might need to be included; I haven't worked with the JS syntax but I knwo that if you want search box and theme functionality you'll need to do something similar for any of these references)

As everyone's code is a little different it's hard to prescribe exactly what you need but hopefully this may give you some ideas. With Deneb I use jsoneditor, which includes Ace, but I'm really only taking advantage of its schema validation functionality, so I manually specify my own instance of Ace editor. As such I handle my dependent imports here, which may also help you figure it out for your case.

Good luck!


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