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Merge pull request #21264 from calixteman/simplify_no_filter

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Use FeatureTest.isCanvasFilterSupported in _bakeSMaskCanvas
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Tim van der Meij 2026-05-12 20:37:16 +02:00 committed by GitHub
commit 10abe660e5
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1 changed files with 4 additions and 5 deletions
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9
src/display/canvas.js
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@ -1437,16 +1437,15 @@ class CanvasGraphics {
}
const preparedEntry = this.canvasFactory.create(w, h);
const pCtx = preparedEntry.context;
// Pre-assign read: undefined means no canvas filter API (assigning
// would just set a JS property and post-assign read would lie).
// Post-assign "none"/"" means the URL was rejected (Firefox
// normalizes accepted url(#id) to an absolute URL).
const filterSupported = pCtx.filter !== undefined;
pCtx.filter = filterSpec.url;
const filterApplied =
filterSupported && pCtx.filter !== "none" && pCtx.filter !== "";
FeatureTest.isCanvasFilterSupported &&
pCtx.filter !== "none" &&
pCtx.filter !== "";
pCtx.drawImage(srcEntry.canvas, 0, 0);
if (filterSupported) {
if (FeatureTest.isCanvasFilterSupported) {
pCtx.filter = "none";
}
if (!filterApplied) {