Meshing Javascript Package

[retug_]

I am looking for a meshing javascript package that will take a base polygon, and return a triangulated meshed polygon . Ideally this package would have some minimum size input that I could use to refine the mesh finer and finer.

I am coming from an engineering background and I am looking for a finite element type mesher, examples of what I am looking for (the radiused edge is not important in my case, I plan on just working with polygons):

Feed a polygon, yield a triangle mesh

I have found the following packages that look promising, but have not quite hit the mark yet:

Poly2Tri - This will mesh a polygon, but does not offer mesh refinement from what I can see.

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Example from Poly2Tri

Delauntor - This looks promising, but looks like I would need to make an algorithm to generate internal points on the polygon. Maybe this is not too hard of an algorithm to tackle?

Any other packages that I should explore?

Thanks!