FAQ Topic - Why is my Ajax page not updated properly when using an HTTP GET request in Internet Explorer? (2013-04-25)

[FAQ server]

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FAQ Topic - Why is my Ajax page not updated properly when
using an HTTP GET request in Internet Explorer?
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Browsers cache the results of HTTP requests to reduce network traffic.
To force the browser to request the document from the server, either
set the `EXPIRES` and/or `CACHE-CONTROL` response header(s)
with a past date or use a unique query string.

req.open("GET", "/example.jsp?date=" + (+new Date), true);

Always use the appropriate HTTP method. Do not use `POST`
to prevent caching. See RFC 2616 [ref 1].

<URL: http://www.mnot.net/cache_docs/#EXPIRES>
<URL: http://www.mnot.net/javascript/xmlhttprequest/cache.html >

References:
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[1] http://www.faqs.org/rfcs/rfc2616.html


The complete comp.lang.javascript FAQ is at
http://jibbering.com/faq/

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