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[api-minor] Disable ImageDecoder
usage by default in Chromium browsers
Given that there are multiple issues with `ImageDecoder` in Chromium browsers, affecting both BMP and JPEG images, for now we (by default) disable that functionality there to avoid problems. This also means that we can remove the previously added, and separate, `isChrome` API-option.
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3 changed files with 19 additions and 18 deletions
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@ -85,7 +85,6 @@ const DefaultPartialEvaluatorOptions = Object.freeze({
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isEvalSupported: true,
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isOffscreenCanvasSupported: false,
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isImageDecoderSupported: false,
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isChrome: false,
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canvasMaxAreaInBytes: -1,
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fontExtraProperties: false,
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useSystemFonts: true,
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@ -120,17 +120,13 @@ class ImageResizer {
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static setOptions({
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canvasMaxAreaInBytes = -1,
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isChrome = false,
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isImageDecoderSupported = false,
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}) {
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if (!this._hasMaxArea) {
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// Divide by 4 to have the value in pixels.
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this.MAX_AREA = canvasMaxAreaInBytes >> 2;
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}
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// TODO: remove the isChrome, once Chrome doesn't crash anymore with
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// issue6741.pdf.
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// https://issues.chromium.org/issues/374807001.
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this.#isImageDecoderSupported = isImageDecoderSupported && !isChrome;
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this.#isImageDecoderSupported = isImageDecoderSupported;
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}
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static _areGoodDims(width, height) {
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@ -181,9 +181,17 @@ const DefaultStandardFontDataFactory =
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* `ImageDecoder` in the worker. Primarily used to improve performance of
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* image conversion/rendering.
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* The default value is `true` in web environments and `false` in Node.js.
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* @property {boolean} [isChrome] - Determines if we can use bmp ImageDecoder.
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* NOTE: Temporary option until [https://issues.chromium.org/issues/374807001]
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* is fixed.
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*
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* NOTE: Also temporarily disabled in Chromium browsers, until we no longer
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* support the affected browser versions, because of various bugs:
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*
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* - Crashes when using the BMP decoder with huge images, e.g. issue6741.pdf;
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* see https://issues.chromium.org/issues/374807001
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*
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* - Broken images when using the JPEG decoder with images that have custom
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* colour profiles, e.g. GitHub discussion 19030;
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* see https://issues.chromium.org/issues/378869810
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*
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* @property {number} [canvasMaxAreaInBytes] - The integer value is used to
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* know when an image must be resized (uses `OffscreenCanvas` in the worker).
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* If it's -1 then a possibly slow algorithm is used to guess the max value.
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@ -289,16 +297,15 @@ function getDocument(src = {}) {
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? src.isOffscreenCanvasSupported
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: !isNodeJS;
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const isImageDecoderSupported =
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// eslint-disable-next-line no-nested-ternary
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typeof src.isImageDecoderSupported === "boolean"
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? src.isImageDecoderSupported
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: !isNodeJS;
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const isChrome =
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typeof src.isChrome === "boolean"
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? src.isChrome
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: (typeof PDFJSDev === "undefined" || !PDFJSDev.test("MOZCENTRAL")) &&
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!FeatureTest.platform.isFirefox &&
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typeof window !== "undefined" &&
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!!window?.chrome;
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: // eslint-disable-next-line no-nested-ternary
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typeof PDFJSDev !== "undefined" && PDFJSDev.test("MOZCENTRAL")
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? true
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: typeof PDFJSDev !== "undefined" && PDFJSDev.test("CHROME")
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? false
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: !isNodeJS && (FeatureTest.platform.isFirefox || !globalThis.chrome);
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const canvasMaxAreaInBytes = Number.isInteger(src.canvasMaxAreaInBytes)
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? src.canvasMaxAreaInBytes
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: -1;
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@ -404,7 +411,6 @@ function getDocument(src = {}) {
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isEvalSupported,
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isOffscreenCanvasSupported,
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isImageDecoderSupported,
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isChrome,
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canvasMaxAreaInBytes,
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fontExtraProperties,
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useSystemFonts,
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