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# Takes provided URL passed as argument and make screenshots of this page with several viewport sizes.
# These viewport sizes are arbitrary, taken from iPhone & iPad specs, modify the array as needed
#
# Original gist by nhoizey: https://gist.github.com/nhoizey/4060568
#
# Usage:
# $ casperjs screenshots.coffee [--atf] [--url=URL]
# with SlimerJS - it has better feature support than the default PhantomJS
# $ casperjs --engine=slimerjs test.coffee [--atf] [--url=URL]