HTTP 404 or Illegal Characters in Path Error while rewriting urls using HttpModule
I would like to rewrite all urls in my project. I am doing this using HttpModule. It works fine, no query string. But some pages require a query string. So he cannot avoid it. This is how I wrote my HttpModule.
HttpApplication MyApp = (HttpApplication)sender;
string MyOldPath = MyApp.Request.Path;
switch (MyOldPath.ToLower())
{
case "/profile":
OriginalURL = "~/Modules/UserMgmt/Users.aspx?self=true";
break;
default:
break;
}
if (OriginalURL != string.Empty)
MyApp.Context.RewritePath(OriginalURL, string.Empty, string.Empty);
When I do this, I got the error "Illegal characters in the path"
Then I updated my webConfig as shown below.
<system.web>
</httpModules>
<httpRuntime requestValidationMode="2.0" relaxedUrlToFileSystemMapping="true" requestPathInvalidCharacters="<,>,*,%,:,&,\" />
</system.web>
At that time, the error "Invalid characters in the path" was resolved and received an Http 404 error.
I could see the current url when debugging like below 
If I am not using the url then rewrite its url as shown below 
Could you please help me to solve this problem. Thanks in advance.
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Here's the solution .... Instead of writing the query string along with the original path, pass it to the third parameter, context.Redirect. i.e.) MyApp.context.Redirect(OriginalPath,string.Empty,myQueryString)
. Context.Redirect syntax with three parameters
RewritePath(String, String, String)
and its value Overrides the URL with the given path, path information, and query string information . Link: https://msdn.microsoft.com/en-us/library/system.web.httpcontext.rewritepath(v=vs.110).aspx
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