I exported origami paper folding animation which was made using the extension AnimAll in blender to three.js and the materials wont show up and the animations array would be empty.

The problem is similar to this: https://blender.stackexchange.com/questions/49815/blender-scene-animation-exported-to-three-js-without-bones-or-skinning