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Error when initializing Child Workers #99

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kevinfmoody opened this issue Jun 18, 2020 · 2 comments · May be fixed by #113
Open

Error when initializing Child Workers #99

kevinfmoody opened this issue Jun 18, 2020 · 2 comments · May be fixed by #113

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@kevinfmoody
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I tried initializing child web workers from a parent worker, and it seems to work well with the exception of the following error being thrown:

rpc-wrapper.js:20 Uncaught ReferenceError: document is not defined
    at Worker.<anonymous> (rpc-wrapper.js:20)

Digging in, it seems like its part of building up the ready event, although document is not in scope in the context of a WebWorker.

let evt = document.createEvent('Event');
evt.initEvent(d.method, false, false);
evt.data = d.params;
worker.dispatchEvent(evt);

What is the purpose of the ready event? Is there a way to build the event in a WebWorker-safe manner? I've looked into new Event, but that's not IE compatible.
@bigbug
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bigbug commented Dec 23, 2020

I've got the same problem.

@developit
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developit commented Jan 9, 2021 •
edited

You can disable the ready event using the ready:false option.

This is used for the ready event, but can't be disabled. I've opened #113 with a fix.

developit added a commit that referenced this issue Jan 9, 2021
@developit
Fix nested worker instantiation breaking from document global
2d8b643 
This should fix #99, and uses the newer Event API where supported (including workers).
@developit developit linked a pull request Jan 9, 2021 that will close this issue
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Fix nested worker instantiation breaking from document global developit/workerize-loader
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@bigbug @developit @kevinfmoody