whatwg/html

createImageBitmap's note is wrong

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#3,552 创建于 2018年3月10日

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 (4 评论) (0 反应) (0 负责人)HTML (7,654 star) (2,520 fork)batch import
good first issuetopic: canvas

描述

https://html.spec.whatwg.org/multipage/imagebitmap-and-animations.html#images-2:dom-createimagebitmap

Rejects the promise with a "SecurityError" DOMException if the script is not allowed to access the image data of the source image (e.g. a video that is CORS-cross-origin, or a canvas being drawn on by a script in a worker from another origin).

Creating Bitmap image from CORS-cross-origin source shouldn't be an issue. Especially there's a origin-clean logic in createImageBitmap

贡献者指南

技术栈
html
领域
documentation
议题类型
documentation
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
2
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
under 1 hour
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
CORS conceptHTML spec understanding
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
80
研究方向
Review the spec section at the linked URL. Investigate the origin clean logic in createImageBitmap to verify that the note is incorrect. Propose a fix to the note by submitting a PR to the whatwg/html repository.