Don't raise errors that cause 500 type HTTP error codes on input validation.
It's not an error. It's a user input error.

2009/9/7 Ulla Theiss <u.theiss@euro...>:
> Hallo list,
>
> because the application error messages like checks of input values
> produce such error messages.
> The browser "firefox" does display these messages, but the "Internet
> Explorer" with the newest updates does not.
> The "Internet Explorer" displays a own error message instead. Only if
> you manipulate the flag "show friendly http error messages" the
> body of standard_error_messages is *always* displayed. But  we think, it
> would be difficult to  make shure that every user does this.
>
> Ulla
>
> Chris Withers wrote:
>> Ulla Theiss wrote:
>>> Hello list,
>>>
>>> is there a possibility to send the standard_error_message with http
>>> return code 200 (ok) instead of 500 (internal_server_error)?
>>
>> Why would you want to? That's in violation of several http specs...
>>
>> Chris
>>
>
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