406 on csv file in fullscreen mode

[lmccart]

From @mimiyin on November 26, 2017 13:13

Repro here: http://alpha.editor.p5js.org/full/HkaEiVdgG

Works in projects mode.

Copied from original issue: processing/p5.js#2377

[catarak]

thanks for reporting this! this may be related to #449. EDIT: definitely the same issue!