Hi,
We recently setup a custom 404 error page for our ASP.NET application which e-mails details of the missing page to a specified account.
Surprisingly we were immediately bombarded with 404 errors for content where the file name is 'null'.
Cross-referencing this with IIS logs it is definitely a GET request for the file and not an error in the custom 404 script, it also appears to only happen all on postbacks.
It doesn't seem to be affecting our application massively but I can't imagine this is correct behaviour and obviously isn't very efficient - can anyone explain this at all?
Thanks in advance.
We recently setup a custom 404 error page for our ASP.NET application which e-mails details of the missing page to a specified account.
Surprisingly we were immediately bombarded with 404 errors for content where the file name is 'null'.
Cross-referencing this with IIS logs it is definitely a GET request for the file and not an error in the custom 404 script, it also appears to only happen all on postbacks.
It doesn't seem to be affecting our application massively but I can't imagine this is correct behaviour and obviously isn't very efficient - can anyone explain this at all?
Thanks in advance.