option to not load iframes, css and images

[balaji nidadavolu]

Hi,

   The option resources: "usable" is loading all scripts along with css, images and iframes while using jsdom.fromFile for loading a html document. Is there an option where I can load only a script and not load css, images or iframes. I am trying to dynamically execute some jquery functions on the html in my body, that does not require to load css, images or iframes. I used a window.close() after my operations, but this seems to be an incomplete solution. Can you please suggest on this.

Thank you.

[Domenic Denicola]

You can use a custom resource loader.

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[balaji nidadavolu]

Thank you for the response. But what are the options to be provided to disable executing css, images and iframes but execute all scripts. I could not find any good examples on custom resource loader. Any pointers would be appreciated.

Thank you.

On Monday, July 6, 2020 at 7:57:06 PM UTC+5:30, Domenic Denicola wrote:

You can use a custom resource loader.

 

From: js...@googlegroups.com <js...@googlegroups.com> On Behalf Of balaji nidadavolu
Sent: Monday, July 6, 2020 10:21
To: jsdom <js...@googlegroups.com>
Subject: option to not load iframes, css and images

 

Hi,

 

   The option resources: "usable" is loading all scripts along with css, images and iframes while using jsdom.fromFile for loading a html document. Is there an option where I can load only a script and not load css, images or iframes. I am trying to dynamically execute some jquery functions on the html in my body, that does not require to load css, images or iframes. I used a window.close() after my operations, but this seems to be an incomplete solution. Can you please suggest on this.

 

Thank you.

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[balaji nidadavolu]

Hi,

  Tried below and it worked. it's not loading iframes now.

let jsdom = require('jsdom');

class CustomResourceLoader extends jsdom.ResourceLoader {

fetch(url, options) {

  if (options.element.localName.toLowerCase() === 'iframe' || options.element.localName.toLowerCase() === 'css'

  || options.element.localName.toLowerCase() === 'img') {

return null;

//console.log(`Element ${options.element.localName} is requesting the url ${url}`);

  }

  return super.fetch(url, options);

}

}

const options = {

runScripts: 'dangerously',

resources: new CustomResourceLoader()                   

};

jsdom.JSDOM.fromFile(uri, options).then(function (dom) { }

Thank you Domenic.

Regards

Balaji.