App crashes on importing SVG

[alexjlockwood]

This SVG causes the app to crash:

https://gist.github.com/alexjlockwood/0db6f64f81eb1eb54434636155463615

The error in the JS console is something like 'can't get property stroke from undefined'.

[alexjlockwood]

To avoid the crash, I think maybe you have to change this function to:

let simpleAttr_ = (nodeAttr, contextAttr) => {
  if (node.attributes && node.attributes[nodeAttr]) {
    context[contextAttr] = node.attributes[nodeAttr].value;
  }
};

I guess it is possible for node.attributes to be undefined if no attributes are specified.

There are some other instances of node.attributes that may need to be checked too.