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Editorial Team
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Asked: 2026-06-03T04:19:28+00:00

In the browser’s address bar, I can specify a resource using any extension or

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In the browser’s address bar, I can specify a resource using any extension or none, e.g., http://www.something.com/someResource.someExtension. How does the browser determine what to do with this resource? e.g., should the browser parse it as an HTML document, or treat it as some script? Is there a notion of a resource type? Thank you.

P.S. I could not believe what I was thinking! 🙁 (see my flaw in the comment to Luka’s answer). How could the browser look at a resource locally! The browser is a client, and the resource resides on the server side. Duh! (I’ve found myself on this “mental” drug occasionally)

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1 Answer

  1. Editorial Team

    The HTTP response returned by server typically contains “Content-type: text/html” or similar line (application/octet-stream, etc).

    Here’s an example (the easiest way to view similar results is to open firebug’s Net tab): 

    Cache-Control   public, max-age=60
Content-Encoding    gzip
Content-Length  9334
Content-Type    text/html; charset=utf-8<----------------here's it
Date    Sat, 05 May 2012 20:34:36 GMT
Expires Sat, 05 May 2012 20:35:36 GMT
Last-Modified   Sat, 05 May 2012 20:34:36 GMT
Vary    *
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