symfony/symfony — comment on commit 842ac36f339a65e3e31fd345a01ba4002a7430ae
File: src/Symfony/Bundle/WebProfilerBundle/Resources/views/Collector/time.html.twig line 256
By stof:

the method should return early in browsers that don't support canvas to avoid having JS errors (OK most devs won't work with IE but they may still want to browse their site with IE when testing the compatibility)