Catch malformed URI content
Catch malformed URI content

Summary:
As seen in https://our.intern.facebook.com/intern/bug/653953588368620/,
the network plugin can crash if content doesn't look like a URI.

Ideally, we'd be more granular in catching this, but for now skipping
that content seems better than crashing the entire plugin page.

Reviewed By: danielbuechele

Differential Revision: D14971610

fbshipit-source-id: 2708e5c0d4d1f584419d24c7dc38438009015565

facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper