Rufflewind authored Jun 14, 2015 and Mateusz Kowalczyk committed Aug 02, 2015

In non-frame mode, parent.window.synopsis refers to the synopsis div
rather than the nonexistent frame.  Unfortunately, the script wrongly
assumes that if it exists it must be a frame, leading to an error where
it tries to access the nonexistent attribute 'replace' of an undefined
value (synopsis.location).

Closes #406