Accessing http header in javascript

[mngibson]

Is there any way to access arbitrary http header information through
javascript? For example, if I wanted to obtain content-length? I
suspect not, but I'm not too knowledgable on js.

Thanks,
Mark

[bobzimuta]

If absolutely necessary, and the browser has XMLHttpRequest support,
you could send out a request for the same page again (note that's an
extra server request). You'll get all the response headers, via the
XMLHttpRequest->getAllResponseHeaders() or
XMLHttpRequest->getResponseHeader("headername") functions

Reference:
http://www.w3schools.com/dom/dom_http.asp

mn******@gmail.com wrote:

Is there any way to access arbitrary http header information through
javascript? For example, if I wanted to obtain content-length? I
suspect not, but I'm not too knowledgable on js.

Thanks,
Mark

[Dr John Stockton]

JRS: In article <11**********************@b28g2000cwb.googlegroups .com>
, dated Tue, 18 Jul 2006 12:44:53 remote, seen in
news:comp.lang.javascript, mn******@gmail.com posted :

>Is there any way to access arbitrary http header information through
javascript? For example, if I wanted to obtain content-length? I
suspect not, but I'm not too knowledgable on js.

<FAQENTRY>

Header information is important, and ISTM that it would be useful to be
able to find out about how to access it, starting by reading the FAQ -
so a suitable link would do.

I see three possibilities worth presenting :
code for using XMLHttpRequest;
a utility program which, given a URL,
will fetch the header material;
Telnet code
but there may be more.

--
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