How to read XML content from window.open into string?

Question

I'm trying to read XML content from window.open into a string variable s like this via a bookmarklet:

javascript: (function() { s=window.open('https://supportcenter.checkpoint.com/supportcenter/secureKnowledgeRss'); s=s.document; alert(s); })();

However, alert just shows '[object HTMLDocument]' instead of the real XML content. Alternatively, is there any way to change the doctype of window.open to HTML in order to show the XML data as simple plain text?

I also tried this code:

javascript: (function() { s=window.open('https://supportcenter.checkpoint.com/supportcenter/secureKnowledgeRss'); var xml = new XMLSerializer(); var str = xml.serializeToString(s.document);; alert(str); })();

but it just returns:

<html xmlns="http://www.w3.org/1999/xhtml"><head></head><body></body></html>

Does this answer your question? Converting HTMLDocument to a printable string — Ryan Wilson
– Ryan Wilson, Commented Jul 14, 2022 at 21:11
But browser extensions can perform this task, too (i.e. changing XML rss into readable HTML). Examples: addons.mozilla.org/firefox/addon/rsspreview or addons.mozilla.org/firefox/addon/feed-preview — maria
– maria, Commented Jul 14, 2022 at 21:36

xbtsw · Accepted Answer · 2022-09-11 06:57:44Z

0

A live example here

Due to CORS limitation this bookmarklet only works if your current page is https://supportcenter.checkpoint.com/

answered Sep 11, 2022 at 6:57

xbtsw

7345 silver badges13 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

How to read XML content from window.open into string?

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related