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Re: Obtaining the DOM tree for a *.htm file on a local disc?

From Thomas 'PointedEars' Lahn <PointedEars@web.de>
Newsgroups comp.lang.javascript
Subject Re: Obtaining the DOM tree for a *.htm file on a local disc?
Date 2023-02-21 22:13 +0100
Organization PointedEars Software (PES)
Message-ID <12162747.O9o76ZdvQC@PointedEars.de> (permalink)
References <7cb3d7c8-74e8-49d2-ba7d-ab6df813f0c1n@googlegroups.com>

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John Stockton wrote:

> Is there a readily-available function which can be called from JavaScript
> running in a normal modern browser which, given as an argument the name
> (relative to the current directory, or maybe absolute) of an HTML file,
> will return a reference to the parsed DOM tree of the BODY of the HTML,
> including the Links, Anchors, etc. arrays?

Apparently they have even killed file:// to file:// HTTP requests in/by 
Chromium 108 :-(

| Access to fetch at 'file:///…' from origin 'null' has been blocked by CORS 
| policy: Cross origin requests are only supported for protocol schemes: 
| http, data, isolated-app, chrome-extension, chrome, https, chrome-
| untrusted.

So AFAIK it is only possible now with a local Web server where the target 
file is also a resource accessible via HTTP:

  fetch(httpURI).then(response => {
    response.text().then(response2 => {
      var doc = (new DOMParser()).parseFromString(response2, 'text/html');
        /* Example */
        console.log(doc.images);
      });
  });

(WFM.)

DOMParser is available since the time of Firefox 1 (2006).
If you do not have fetch(), you should write one using XMLHttpRequest.

<https://developer.mozilla.org/en-US/docs/Web/API/DOMParser>
<https://developer.mozilla.org/en-US/docs/Web/API/fetch>
<https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest>
<http://PointedEars.de/es-matrix/#javascript>

-- 
PointedEars
<https://github.com/PointedEars> | <http://PointedEars.de/wsvn/>
Twitter: @PointedEars2
Please do not cc me. /Bitte keine Kopien per E-Mail.

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Thread

Obtaining the DOM tree for a *.htm file on a local disc? John Stockton <dr.j.r.stockton@gmail.com> - 2023-02-16 15:25 -0800
  Re: Obtaining the DOM tree for a *.htm file on a local disc? Dr.Kral@nyc.rr.com - 2023-02-16 19:46 -0500
    Re: Obtaining the DOM tree for a *.htm file on a local disc? Ezimene nimi Teine nimi <yyyyyeeeee00000@writeme.com> - 2023-03-06 03:17 -0800
  Re: Obtaining the DOM tree for a *.htm file on a local disc? Jon Ribbens <jon+usenet@unequivocal.eu> - 2023-02-17 01:06 +0000
  Re: Obtaining the DOM tree for a *.htm file on a local disc? JJ <jj4public@outlook.com> - 2023-02-17 08:34 +0700
  Re: Obtaining the DOM tree for a *.htm file on a local disc? "Jš•’š•žš•–š•¤ š•‚š•šš•£š•œ" <noneya.invalid@gmail.com> - 2023-02-17 15:13 +0000
    Re: Obtaining the DOM tree for a *.htm file on a local disc? K <techfan55555@hotmail.com> - 2023-03-11 01:59 -0800
  Re: Obtaining the DOM tree for a *.htm file on a local disc? Arno Welzel <usenet@arnowelzel.de> - 2023-02-19 00:33 +0100
  Re: Obtaining the DOM tree for a *.htm file on a local disc? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2023-02-21 22:13 +0100
  Re: Obtaining the DOM tree for a *.htm file on a local disc? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2023-02-21 22:15 +0100
    Re: Obtaining the DOM tree for a *.htm file on a local disc? Arno Welzel <usenet@arnowelzel.de> - 2023-03-09 03:06 +0100
  Re: Obtaining the DOM tree for a *.htm file on a local disc? John Stockton <dr.j.r.stockton@gmail.com> - 2023-03-04 13:36 -0800
    Re: Obtaining the DOM tree for a *.htm file on a local disc? JJ <jj4public@outlook.com> - 2023-03-05 23:05 +0700
      Re: Obtaining the DOM tree for a *.htm file on a local disc? John Stockton <dr.j.r.stockton@gmail.com> - 2023-03-05 15:26 -0800

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