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Try to remove the mozOpaque canvas-property (PR 6551 follow-up)

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According to MDN, see https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/mozOpaque, the `mozOpaque` canvas-property is not only non-standard (obviously) but it's also been deprecated.
Instead it's recommended to use `alpha = false` when getting the canvas-context, see https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/getContext#contextattributes, which all of our affected code is already doing.
This commit is contained in:
Jonas Jenwald 2022-05-09 12:25:51 +02:00
parent 38c82357b2
commit af5789125f
5 changed files with 0 additions and 34 deletions
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6
src/display/text_layer.js
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@ -730,12 +730,6 @@ class TextLayerRenderTask {
const canvas = this._document.createElement("canvas");
canvas.height = canvas.width = DEFAULT_FONT_SIZE;
if (
typeof PDFJSDev === "undefined" ||
PDFJSDev.test("MOZCENTRAL || GENERIC")
) {
canvas.mozOpaque = true;
}
this._layoutTextCtx = canvas.getContext("2d", { alpha: false });
if (this._textContent) {