General speed questions versus a browser like chrome

[Ali Unwala]

Hi Everyone,

I am new to the world of HTML source code parsers so feel free to point me in the right direction. I had a general question about the speeds of parser's like JSDOM. 

I have a piece of HTML w/ lots of <script src="SOMESCRIPT.js"></script> logic that I need to get the DOM of. I usually use a command that looks like:

  const dom = new JSDOM(body, { resources: "usable", runScripts: "dangerously"  });

to get my DOMs.

In the chrome browser it will take usually less than a second to render. With jsdom it will take upwards of 10 seconds. (And I have other examples that take minutes to render as well.)

So my question is:

Is the speed difference I noticed between Chrome an jsdom pretty standard? Or am I using jsdom incorrectly and causing some bottleneck?

Thank you very much for the help! I really appreciate it.

-Ali

[Domenic Denicola]

Hey there,

 

Can you try the just-released v13.1.0? We had a major speed regression for pages that had large inline <script> and <style> elements between v11.6.0 and v13.1.0.

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