The URLErrorLevel global property is an integer indicating the lowest URL status value that is treated as an error when fetching the contents of a URL. The default value is 400, so a returned status value of 400 or above will either throw an exception or set the result() function to an exception (depending on the current setting of the throwExceptionResults global property). You may set the URLErrorLevel to 0 (or to any sufficiently large number) to prevent this type of exception from being generated.