Warping Text To Bézier Curves (2009) (planetclegg.com)

Don't forget to also read http://pomax.github.io/bezierinfo/

I'm looking for a javascript library that can do operations on bezier curves. For instance: path intersection, path union, path grow/shrink, path rounding, applying calligraphic pens to paths, etc. (basically all the operations found in vector graphics tools).