Alternative solution that is forward compatible

Author: megoth

lib/handlers/get.js

@@ -83,10 +83,12 @@ function handler (req, res, next) {
         rootPath: ldp.root,
         includeHost: ldp.multiuser
       })
-      contentType = mapper._getContentTypeByExtension(path)
-      res.setHeader('Content-Type', contentType)
-      res.status(200).send('OK')
-      return next()
+      return mapper.mapFileToUrl({ path }).then(mappedFile => {
+        contentType = mappedFile.contentType
+        res.setHeader('Content-Type', contentType)
+        res.status(200).send('OK')
+        return next()
+      })
     }
 
     // Handle dataBrowser