我收到“画布已被弄脏”的字样。 Chrome中出现错误，但FF中没有 [英] I get a "Canvas has been tainted" error in Chrome but not in FF

问题描述

我的Javascript实现存在问题。该脚本将在Firefox中运行，但在Chrome中显示：

I'm having a problem with my Javascript implementation. The script will run in Firefox but in Chrome it says:

Unable to get image data from canvas because the canvas has been tainted by cross-origin data. index.html:1
Uncaught Error: SecurityError: DOM Exception 18 

任何人都有

推荐答案

Chrome浏览器不认为不同的本地文件来自同一本地文件域。也就是说，您通过 file：// URL引用的每个本地文件都被视为来自与其他文件不同的唯一域：// 网址。它们在同一个目录中没什么区别。

Chrome does not consider different local files to be sourced from the same domain. That is, each local file you reference via a file:// URL is treated as if it comes from a unique domain separate from that of other file:// URLs. That they're in the same directory makes no difference.

您可以使用一个选项启动Chrome（ -allow-file-access- from-files （我认为），它告诉它将本地文件视为全部来自公共域。

You can start Chrome with an option ("--allow-file-access-from-files" I think) that tells it to treat local files as all being from a common domain.

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