[CB-8736] Android WebGL feature check returns incorrect result on some devices

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 3.5.0
• Component/s: cordova-amazon-fireos (DEPRECATED)

Environment

Kindle Fire Tablets HD 6, 7, & HDX 8.9. (Although Fire Phone works correctly) Also, a small % of other Android devices

• Assignee: Archana Naik
• Reporter: Devin Garner
• Created: 23/Mar/15 22:54
• Updated: 21/Dec/16 18:43
• Resolved: 21/Dec/16 18:43

Description

//This following javascript code should determine if WebGL is available. On versions of Android prior to 5 (Lolipop), WebView didn't support WebGL, so all pre-Lolipop android devices should return "false" on this WebGL feature availability check. However, some pre-Lolipop devices are returning "true", which is incorrect.

var canvas = document.createElement('canvas');
canvas.screencanvas = false;
var supportsWebGL = !!window.WebGLRenderingContext && (canvas.getContext('webgl') || canvas.getContext('experimental-webgl'));