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Check OffscreenCanvas support once on the worker-thread

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Currently we repeat the `FeatureTest.isOffscreenCanvasSupported` checks all over the worker-thread code, and with upcoming changes this will become even "worse".

Hence this patch, which changes the *worker-thread* default value for the `isOffscreenCanvasSupported`-parameter to `false` and moves the feature-testing into the `BasePdfManager`-constructor.

*Please note:* This patch is written using the GitHub UI, since I'm currently without a dev machine, so hopefully it works correctly.
This commit is contained in:
Jonas Jenwald 2023-02-27 12:27:28 +01:00 • committed by GitHub
parent 2da2ac492e
commit 45c332110e
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4 changed files with 12 additions and 16 deletions
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src/core/evaluator.js
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@ -80,7 +80,7 @@ const DefaultPartialEvaluatorOptions = Object.freeze({
disableFontFace: false,
ignoreErrors: false,
isEvalSupported: true,
isOffscreenCanvasSupported: true,
isOffscreenCanvasSupported: false,
fontExtraProperties: false,
useSystemFonts: true,
cMapUrl: null,