Browser unit test failures on Mac

[allison-truhlar]

When using npm run test on a Mac running Sonoma 14.5, 61/269 tests fail. I receive the same error message for all: Error: WebGL not supported. I have confirmed through visiting chrome://gpu/ in the Chrome browser that WebGL is enabled; in addition, the local server started through npm dev-server works to visualize files. I am working on resolving the issue and plan to open a pull request.

[hubbardp]

I get the same failure on macOS 12.1 and 14.0 beta, with error messages like this:

FAIL |browser| src/single_mesh/frontend.browser_test.ts [ src/single_mesh/frontend.browser_test.ts ]
Error: WebGL not supported.
❯ initializeWebGL src/webgl/context.ts:41:10
39| const gl = canvas.getContext("webgl2", options);
40| if (gl == null) {
41| throw new Error("WebGL not supported.");
| ^
42| }
43| gl.memoize = new Memoize<any, RefCounted>();
❯ webglTest src/webgl/testing.ts:25:9
❯ fragmentShaderTest src/webgl/shader_testing.ts:367:2
❯ src/single_mesh/frontend.browser_test.ts:43:4

Interestingly, I do not get failures on Windows 11 Enterprise.