add explicit check to id

chapmanu / fragmentions

A proposal and polyfill to use ## double-hash anchors as links to individual words or phrases in a document.

https://github.com/chapmanu/fragmentions

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Open kartikprabhu opened 6 years ago

kartikprabhu commented 6 years ago

add explicit check to id before passing to getELementByID to prevent JS error on no fragment

fix #14