AltImage via set/highlight/select triggers exception #316
Description
When trying to establish an exception similar to the following occurs:
graphics.js:215 Uncaught TypeError: Failed to execute 'drawImage' on 'CanvasRenderingContext2D': The provided value is not of type '(CSSImageValue or HTMLImageElement or SVGImageElement or HTMLVideoElement or HTMLCanvasElement or ImageBitmap or OffscreenCanvas)'
at m.Graphics.addAltImage (graphics.js:215)
at m.Graphics.<anonymous> (graphics.js:438)
at Object.<anonymous> (graphics.js:253)
at Function.each (jquery.1.7.2.min.js:2)
at m.Graphics.render (graphics.js:249)
at m.Graphics.addShapeGroup (graphics.js:156)
at m.AreaData.highlight (areadata.js:248)
at HTMLAreaElement.mouseover (mapdata.js:162)
at HTMLAreaElement.me.mouseover (mapdata.js:359)
at HTMLAreaElement.dispatch (jquery.1.7.2.min.js:3)
It appears this issue was introduced in this commit with the root cause being Line 1034.
Steps to reproduce:
- Clone repo
- Open /examples/altimages.js
- Hover over Texas
OR - Click "click to bind az with altimage2"