public bool IsExcludedPath(string relUrl)
{
foreach (string path in _excludedPaths)
{
if (path.Contains(relUrl.ToLower()) || relUrl.ToLower().EndsWith(path))
return true;
}
return false; // _excludedPaths.Contains(relUrl.ToLower());
}

BTW, the source of the issue is that axd files are, apparently, already compressed, so this module is double-compressing them. Another option would be to check if the response header already contains the compression on it and, if so, do not add the compression filter again. That may be a better solution but I didn’t investigate to see if it works.

Thanks!