[thelist] Interesting maybe IIS/ASP maybe authentication erro rSOLVED, BUT WAIT.....

Ken Schaefer Ken at adOpenStatic.com
Fri Dec 9 20:03:08 CST 2005

AFAIK unchecking that box shouldn't solve any problems. So, it would seem
that there was something else going wrong, but by the time it came around to
rechecking the issue, the problem has "solved" itself.

What I /would/ suggest is having a custom 500 error handling page that will
record the details of any user-code generated 500 errors. These could be
logged somewhere, or emailed to the webmaster. Then you know in realtime that
the errors are occuing, and grab the actual HTTP request details that
resulted in the 500 error. 

Errors that occur in the webserver software itself can't be trapped this way,
but IIS has an ability to log these errors to the Windows event log (so you'd
need to look there for issue with IIS or http.sys)


: -----Original Message-----
: From: thelist-bounces at lists.evolt.org [mailto:thelist-
: bounces at lists.evolt.org] On Behalf Of Jay Blanchard
: Sent: Saturday, 10 December 2005 2:24 AM
: To: 'thelist at lists.evolt.org'
: Subject: Re: [thelist] Interesting maybe IIS/ASP maybe authentication erro
: [snip]
: In Internet Explorer, please do:
: Tools -> Internet options -> advanced -> uncheck "Show Friendly HTTP
: Errors"
: Reload the page.
: What error message do you see now?
: [/snip]
: Ya ain't gonna' belee dis!
: Either Ken knows some weird Internet Exploder magic (more precisely
: voodoo)
: but the error that appears after unchecking "Show Friendly HTTP Errors" is
: no error at all, it is the expected web page.
: I would have expected that turning this off would have provided a more
: verbose reason as to what the error was, and I should have expected it
: according to;
: http://support.microsoft.com/default.aspx?scid=kb;en-us;Q294807
: However, clearing the checkbox fixes this particular user's problem. I did
: confirm that you get a more verbose message when this option is cleared
: and
: a proper error is introduced.
: I should be satisfied that the issue has been resolved, but I am a little
: uneasy. This particular action should not have corrected the issue at all,
: just given me more information. Is this a known work around? After
: Googling
: the phrase I found nothing that hints that this might be a solution for
: this
: kind of issue, except for one small entry in;
: http://www.aspfaq.com/show.asp?id=2109
: [quote]
: You might be finding it difficult to debug ASP errors in a browser. This
: is
: because IE, versions 5.0 and up, defaults to a ridiculous option that
: suppresses errors to a more "friendly" error (which, IMHO, is a lot more
: cryptic than what they'd get otherwise). This comes back to the user as a
: 500.100 Internal Server Error (ASP 0147), and in certain scenarios a 404
: Page cannot be found error, and doesn't leave the user much information to
: pass on to the webmaster, except to tell them that "The page cannot be
: displayed."
: To circumvent this silliness and get real ASP errors, go to IE's
: Tools/Internet Options menu, and on the advanced tab, uncheck "Show
: friendly
: HTTP error messages."
: Hit Apply, OK, and refresh the page in question. There are five possible
: outcomes; the page will either:
: still yield cryptic and unhelpful error messages (e.g. Page Not Found);
: stop processing where the error occurs, and leave the rest of the page
: blank;
: return "Server Application Error";
: give you a more detailed error; or,
: magically work again.
: [/quote]

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