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Asked: 2026-05-30T20:28:47+00:00

I tried so many tutorials online but everything I try is really old and

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I tried so many tutorials online but everything I try is really old and fails – I can’t even create an XMLHTTPRequest object!

I just want to get the header from google.com – how can I do that?

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  1. Editorial Team

    You would use xhr.getResponseHeader() to get a single header, or xhr.getAllResponseHeaders() to read all of the headers from an XMLHttpRequest response.

    The reasons this won’t work for you:

    • XMLHttpRequest is case sensitive. If you are using HTTP in all caps, it will fail.
    • Unless you are a google employee adding code to google.com, your request falls victim to the same origin policy. You’ll have to use your server as a proxy to get headers from a google request.
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