Weird, I can't explain that. I just did this as a test:
<html><head><title></title>
<script>
xhr = null;
function test() {
if (window.XMLHttpRequest) {
xhr = new XMLHttpRequest();
} else {
xhr = new ActiveXObject("Microsoft.XMLHTTP");
}
xhr.onreadystatechange = handler;
xhr.open("post", "test.htm", true);
xhr.send("p1=v1&p2=v2&p3=v3");
}
function handler() {
alert("handler()");
}
</script>
</head><body>
<input type="button" onClick="test();">
</body></html>
Should be virtually identical to what your doing. At least under IE
using HTTPWatch, I see the parameters as POST content as expected, not
appended to any header or anything. For some reason LiveHTTPHeaders
didn't even seem to want to capture for me (for all the bragging people
do about FF, I have more trouble getting it to do what I want!). I
wonder if LiveHTTPHeaders is getting it wrong? Or maybe just displaying
some odd way that makes it look like it's a child of that header? I
don't know, just guessing.
Oh, I see your reply about content type just now... did that solve this
problem? I've never had to set the content type before, and I've sent
chunks of XML as well as plain strings and even a query string like your
doing many times in a POST using XHR, both FF and IE, never seen any
problem like this.
Frank
Michael Jouravlev wrote:
Thanks, Frank. I guess I need this book :) Before I get it, allow me
one more question.
I have a working XHR using GET (target is full URL with query params):
ajaxRequest.open("GET", target, true);
ajaxRequest.send(null);
Now I want to switch to POST (url is base URL, params contain request params):
ajaxRequest.open("POST", url, true);
ajaxRequest.send(params);
It does not work. The parameters are sent, but apparently not as
content, but as "Cache-Control" attributes. The working POST request
shows like this in LiveHTTPHeaders (another test app):
POST /strutsdialog/dialogloginactioncontrol.do HTTP/1.1
...
Content-Length: 41
name=&password=&DIALOG-EVENT-LOGIN=Log+In
The non-working XHR POST request looks like this:
POST /jspcontrols-samples/login/loginComponent.jsp HTTP/1.1
...
Content-Length: 68
Cache-Control: no-cache
jspcontrols.ajax.xhtml=true&loginEvent=1&username=user&password=pass
Here my parameters are listed as a child for "Cache-Control" element.
Application does not see them.
What I am doing wrong and how to do it right?
Michael
On 3/11/06, Frank W. Zammetti <[EMAIL PROTECTED]> wrote:
The Manning AJAX In Action book has an appendix that covers a great many
of these useful techniques. Even if you have zero interest in AJAX, I
haven't seen many books or articles that covers Javascript as well as
this one. I consider myself fairly well-versed in Javascript, and even
I picked up a trick or two and otherwise solidified by understanding.
Very much recommended (yeah, and the coverage of AJAX ain't bad either!)
Frank
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