[FEATURE] Add canHandleRequest to entry points (Revision 1)

This change allows entry points to check if the current request can
be handled. This is useful for AJAX, REST and other request types.

Change-Id: I9d9eda5fd75342c4abdd4d171eda964aa9b97fe9
Releases: master
Resolves: #45100
Revision-Id: a241a1aad51845a07e1ec254795b021c1b319a67