Passing special characters in http get request

fmsol used Ask the Experts™
Have a webpage that is opened from another system with parameters that can contain extended ascii characters:


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The cshtml webpage reads the parameters as usual with:

var pname = Request["pname"];
and shows it on the page with @pname

Works fine for all browsers except IE (even IE11) when pname=Günther or another name with foreign characters; ü, ø and so on.


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results in G�nther
The webpage is using <meta charset="UTF-8" />

Why does this work in Chrome and Opera but not in IE?
Any solution? I have no control over the submitting system, som the url cannot be encoded before submit.
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Web Ninja at large
try using HTMLEncode() in combination with some manual escaping of the characters of the url you pass. This article provides more details, but essentially, the code would be:

public static string HtmlEncode( string text ) {
    char[] chars = HttpUtility.HtmlEncode( text ).ToCharArray();
    StringBuilder result = new StringBuilder( text.Length + (int)( text.Length * 0.1 ) );

    foreach ( char c in chars ) {
        int value = Convert.ToInt32( c );
        if ( value > 127 )
            result.Append( c );

    return result.ToString();

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Top Expert 2015

Hi Julian Hansen

Ok Thanks! I will put some notes around before I post any link.



Thank you Big Monty,
but why isn't this a problem in Opera and Chrome? Only IE?

I can also solve it by using jQuery:

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which returns the correct  string, but I thought it could be solved more easily with another codepage or something.
Big MontyWeb Ninja at large

Because IE is a lot less forgiving than other browsers (older versions at least) because it doesn't always follow the same standards. Once Edge comes out, hopefully all of that goes away.

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