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  • Pasha Craydon thinks this is interesting:

milar to this: A script on this page may be busy, or it may have stopped responding. This could be the result of a programming error, perhaps an endless loop. But what should you do if your JavaScript does not have an error and the calculation is just taking a bit longer than usual? This is where web workers come in.

From

Cover of HTML5 Guidelines for Web Developers

Note

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