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Currently top of tree WebGL has a crashing test. Instead, use the WebGL 1.0.3 test suite at: https://www.khronos.org/registry/webgl/conformance-suites/1.0.3/webgl-conformance-tests.html Known WebGL 1.0.3 failures using Chrome Canary with top of tree ANGLE: conformance/glsl/misc/struct-equals.html: 3 tests failed conformance/glsl/misc/struct-specifiers-in-uniforms.html: 12 tests failed conformance/glsl/misc/ternary-operators-in-global-initializers.html: 12 tests failed Below is outdated, to be updated once the tests can run again: Known failures in the WebGL CTS, top of tree, using Chromium https://www.khronos.org/registry/webgl/sdk/tests/webgl-conformance-tests.html conformance/glsl/bugs/compound-assignment-type-combination.html: 54 tests failed conformance/glsl/misc/struct-equals.html: 3 tests failed conformance/glsl/misc/struct-specifiers-in-uniforms.html: 12 tests failed conformance/glsl/misc/ternary-operators-in-global-initializers.html: 12 tests failed conformance/textures/tex-image-and-sub-image-2d-with-webgl-canvas.html: 32 tests failed conformance/textures/tex-image-and-sub-image-2d-with-webgl-canvas-rgb565.html: 64 tests failed conformance/textures/tex-image-and-sub-image-2d-with-webgl-canvas-rgba4444.html: 64 tests failed conformance/textures/tex-image-and-sub-image-2d-with-webgl-canvas-rgba5551.html: 64 tests failed