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Fix offscreencanvas undefined (#88) 

* Suppress ReferenceError on some environments (i.e. older iOS)

* fix

* fix

* lint

---------

Co-authored-by: yuriha-chan <yuriha.tsuchiura@gmail.com>
This commit is contained in:
riku6460 2023-06-16 14:33:13 +09:00 committed by GitHub
parent e88617e3c3
commit 91af2d7b06
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1 changed files with 11 additions and 5 deletions
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16
packages/frontend/src/workers/test-webgl2.ts
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@ -1,7 +1,13 @@
const canvas = new OffscreenCanvas(1, 1);
const gl = canvas.getContext('webgl2');
if (gl) {
postMessage({ result: true });
} else {
try {
// throw ReferenceError in Safari <= 16.3
const canvas = new OffscreenCanvas(1, 1);
const gl = canvas.getContext('webgl2');
if (gl) {
postMessage({ result: true });
} else {
postMessage({ result: false });
}
} catch (err) {
// assert(e instanceof ReferenceError)
postMessage({ result: false });
}