Chrome 48 removes SVGGraphicsElement.getTransformToElement()

Unfortunately the most recent beta version of chrome (48.0.2564.23) removes SVGElement.prototype.getTransformToElement which is used when creating edges.

The motivation behind removing this feature can be found here with the actual Google Chrome issue tracking this here

Therefore using dagre-d3 in this latest beta version of Chrome throws errors like:

TypeError: elem.getTransformToElement is not a function(…)

As suggested by the JointJS team this function can be poly-filled where it is required. We are working around this locally with a polyfil for now, but it clearly would be better for dagre-d3 to centralise a fix (polyfil or otherwise) so that everyone using Chrome 48 can benefit.

Any thoughts on how best to fix this in dagre-d3?

[ojha-ravi]

yes @robhobbes, we are using the same polyfill as JointJs Team posted…

SVGElement.prototype.getTransformToElement = SVGElement.prototype.getTransformToElement || function(elem) {
    return elem.getScreenCTM().inverse().multiply(this.getScreenCTM());
};

[jrgleason]

Wow so the justification for removing this from Chrome was it is too difficult to fix the issues? That sounds like a crappy reason what am I missing?