IIS Request.Form and JavaScript XMLHTTPRequest not working in Firefox and Chrome
Question
I'm using XMLHttpRequest to send FormData to an IIS server. On the server, the Request.Form object has form data when the browser is IE, but it has no form data when the browser is FireFox or Chrome. The example below submits a form to the server using a FormData object. With IE, the Request.Form.Count is 1. With FireFox and Chrome it is zero. In all cases I would expect the result to be 1. I expect I'm doing something wrong, but I'm not seeing it.
Here's the client code:
<script>
function SubmitForm() {
var http = new XMLHttpRequest()
var data = new FormData()
data.append("Text1", document.getElementById("Text1").textContent);
http.open("POST", "ajaxtest.aspx", true);
http.setRequestHeader("Content-Type", "multipart/form-data");
http.onreadystatechange = function () {
if (http.readyState == 4 && http.status == 200) {
alert(http.responseText);
}
}
http.send(data);
}
</script>
<body>
<input id="Text1" type="text" value="This is text to the server" />
<input id="Button1" type="button" value="button" onclick="SubmitForm()" />
</body>
And here's the server code:
Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load
If Request.HttpMethod = "POST" Then
Response.Write("Request.Form.Count=" & Request.Form.Count)
Response.End()
End If
End Sub
Any suggestions or explanations and solutions would be appreciated.
1 answers
solution1
0 ACCPTED 2016-10-30 10:59:15
Turns out the problem was the setRequestHeader. I removed it and got the desired behavior.
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