window.devicePixelRatio fails in Firefox and Chrome 57

[Knagis]

Reading the value of window.devicePixelRatio throws an error in Firefox:

TypeError: 'get devicePixelRatio' called on an object that does not implement interface Window.

It seems this might be caused by the same issue as was reported in #38

    export class Visual implements IVisual {
        constructor(options: VisualConstructorOptions) {
            console.log("devicePixelRatio test");
            try {
                console.log("devicePixelRatio ok", window.devicePixelRatio);
            } catch (e) {
                console.error("devicePixelRatio err", e);
            }
        }
    }

The same code works correctly on Chrome.

[Knagis]

This also happens now on Chrome 57.

[Trottsie]

Same issue here chrome 57 not working. This is having a significant impact.

[ghynes]

Any updates on this? It's a huge issue for us at the moment, breaking critical visualizations

[ignatvilesov]

The current workaround is to use window.window.devicePixelRatio instead.

Please note we've created the common issue to track current status.