fix for server side rendering

[TrejGun]

I'm using this package via react-art in hybrid react application.
so when i'm trying to render my code on the server side it results in error

~/node_modules/art/modes/fast-noSideEffects.js:2
    var canvas = document.createElement('canvas');
                 ^

ReferenceError: document is not defined
    at hasCanvas (~/node_modules/art/modes/fast-noSideEffects.js:2:18)
    at Object.<anonymous> (~/node_modules/art/modes/fast-noSideEffects.js:6:5)
    at Module._compile (module.js:573:32)
    at Module._extensions..js (module.js:582:10)
    at Object.require.extensions.(anonymous function) [as .js] (~/node_modules/babel-register/lib/node.js:152:7)
    at Module.load (module.js:490:32)
    at tryModuleLoad (module.js:449:12)
    at Function.Module._load (module.js:441:3)
    at Module.require (module.js:500:17)
    at require (internal/module.js:20:19)

this patch prevents a crush

[MoOx]

+1 for this

[aertmann]

@sebmarkbage thanks for merging, would you mind tagging a new version as well so it can be used down the road of dependency chains? thanks

[mkochendorfer]

@sebmarkbage Running into this same issue and really would appreciate a release being tagged with this bug fix that has already been merged.

[sebmarkbage]

tagged [email protected]

[MoOx]

(@sebmarkbage no big deal at all, but no git tag associated on github releases page, just in case your forgot)

[webnah]

confired it works after change patch at other file not file abow

react-native-web-ssr-boilerplate/node_modules/art/modes/fast-noSideEffects.js

var hasCanvas = function(){

var canvas = typeof window !== 'undefined' && window.document && window.document.createElement && document.createElement('canvas');

return canvas && !!canvas.getContext;

};