XML Display in the Browsers

When XML first debuted, none of the Web browsers were capable of displaying XML documents, except as text documents. Although that is a valid way to view XML documents, it also represents a step backward from the display of HTML.

Eventually, the browsers began to add support for XML. Internet Explorer was the first, with the ability to display an XML document as a tree, which could be collapsed or expanded in the browser display.

XML was around approximately two years (as an official Recommendation) before XSL. During that time, browser manufacturers wanted a way to display XML in the browser, and CSS was already supported. And because HTML is a markup language and XML vocabularies are markup languages, it didn't take ...

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