Issue #11368: Fix problem with Last-modified check due to using the Scan instead of the Scanner to associate last-modified URLs with in the middlewares.
Issue #11368: Fix problem with Last-modified check due to using the Scan instead of the Scanner to associate last-modified URLs with in the middlewares.

os2webscanner/os2webscanner,os2webscanner/os2webscanner,os2webscanner/os2webscanner,os2webscanner/os2webscanner