Font parsing fails on "normal 12px 'Helvetica Neue', 'Helvetica', 'Arial', sans-serif"

[makareth]

Seen on v1.0.15.

Sorry to tell but I gave up understanding this regex :
regex = /^\s*(?=(?:(?:[-a-z]+\s*){0,2}(italic|oblique))?)(?=(?:(?:[-a-z]+\s*){0,2}(small-caps))?)(?=(?:(?:[-a-z]+\s*){0,2}(bold(?:er)?|lighter|[1-9]00))?)(?:(?:normal|\1|\2|\3)\s*){0,3}((?:xx?-)?(?:small|large)|medium|smaller|larger|[.\d]+(?:%|in|[cem]m|ex|p[ctx]))(?:\s*/\s*(normal|[.\d]+(?:%|in|[cem]m|ex|p[ctx])))?\s*([-,"\sa-z]+?)\s*$/i;

Shouldn't "normal 12px 'Helvetica Neue', 'Helvetica', 'Arial', sans-serif" be parseable ?

Chrome console shows as follows :
ERROR TypeError: Cannot read property '1' of null
at ctx.push../node_modules/canvas2svg/canvas2svg.js.ctx.__parseFont (VM9279 vendor.js:90992)
at ctx.push../node_modules/canvas2svg/canvas2svg.js.ctx.__applyText (VM9279 vendor.js:91039)
at ctx.push../node_modules/canvas2svg/canvas2svg.js.ctx.fillText (VM9279 vendor.js:91066)
at fillText (VM9279 vendor.js:106831)

[murkle]

See #68 for fix