Why Are Web Workers Not Allowed To Modify The Dom

I know web workers work as a separate thread than the UI thread but i dont understand why they are not allowed to modify the DOM. I mean that you can allow inter thread communicati

Solution 1:

Because the DOM is not threadsafe, and JavaScript does not expose a thread API.

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See also:

• Is JavaScript multithreaded?
• Thread Safety in Javascript?
• Using web workers - About thread safety