I have a very basic ASP.NET web site. It has a single page (TestPage.aspx) that I want to be able to launch using a POST request with some XML input. The basic HTML page that launches the request looks like this:
<html>
<head>
</head>
<body>
<form action="http://webserver/TestPage.aspx" name="Launch" method="post">
<input type="hidden" name="XMLmsg" value="<initialize>...</initialize>">
<input type="submit" value="Submit">
</form>
</body>
</html>
When the TestPage launches, however, I get the easily 'Google-able' "A potentially dangerous Request.Form value was detected from the client" error message.
It seems like the solution would be to put ValidateRequest="false" into my TestPage.aspx file, right? I thought so, too. And the internet told me the same thing. The only problem is...that didn't change anything. I still get the error.
I really need to be able to parse this XML. What can I do?