Firefox @ font-face与本地文件 - 可下载字体：下载失败 [英] Firefox @font-face with local file - downloadable font: download failed

问题描述

我在使用通过相对网址访问的字体时遇到问题。

I am having an issue with using a font accessed via a relative URL.

@font-face {
    font-family: 'ElegantIcons';
    src:url('../src_main/fonts/ElegantIcons.eot');
    src:url('../src_main/fonts/ElegantIcons.ttf') format('truetype'),
        url('../src_main/fonts/ElegantIcons.svg#ElegantIcons') format('svg'),
        url('../src_main/fonts/ElegantIcons.woff') format('woff'),
        url('../src_main/fonts/ElegantIcons.eot?#iefix') format('embedded-opentype');
    font-weight: normal;
    font-style: normal;
}

当我访问网页时，字体不工作，我得到这个：

When I access the web page the font doesn't work and in the console I get this:

downloadable font: download failed (font-family: "ElegantIcons" style:normal weight:normal stretch:normal src index:1): status=2147500037
source: file:///...snipped.../src_main/fonts/ElegantIcons.woff @ file:///...snipped.../src_poke/fonts-style.css

通过将URL复制/粘贴到浏览器地址栏中来访问文件

Accessing the file by copying/pasting the URL into the browser address bar shows that it is the correct URL as I can download the font.

推荐答案

Jonathan Kew对相关的mozilla bugzilla条目：

A hat tip to Jonathan Kew's response on a relevant mozilla bugzilla entry:

我相信这是按照设计工作。 AIUI，这里的问题是
从一个文件：// URI加载的页面，只有文件系统的
同一目录中（或下面）的文件被认为是同源，
，因此将字体放在不同的子树（../font/）意味着
将被安全策略限制。

I believe this is working as designed. AIUI, the issue here is that for a page loaded from a file:// URI, only files in (or below) the same directory of the filesystem are considered to be "same origin", and so putting the font in a different subtree (../font/) means it will be blocked by security policy restrictions.

通过在about：config中将security.fileuri.strict_origin_policy设置为
false来放松这一点，但是由于这会让页面访问你的
整个本地文件系统，所以谨慎使用它。

You can relax this by setting security.fileuri.strict_origin_policy to false in about:config, but as this gives the page access to your entire local filesystem, it's something to be used with caution.

总而言之，无需重新排列文件即可修复：

To summarise, the "fix" without re-arranging your files:

• 打开about：config


• 将 security.fileuri.strict_origin_policy 设置为false


• 小心安全隐患

• Open about:config
• Set security.fileuri.strict_origin_policy to false
• Beware of the security implications

但是，最好的方法是确保任何资源都可访问，而不必备份文件系统首先。

The best way is, however, to make sure any resources are accessible without going back up the file system first.

注意：源策略是基于html而不是css文件计算的！因此，除了css文件之外的字体文件可能不工作，这是非常混乱。

Note: the origin policy is calculated based on the html, NOT the css file! So a font file right besides an css file might not work, which is very confusing. (At least this is what I thought was the case with Firefox!)

跟进：

eradman注释：

eradman comments:

反之亦然：相对路径相对于CSS文件。

chrylis响应：

chrylis responds:

你会认为，但是Firefox中的实际代码似乎不同意。

You'd think that, but the actual code in Firefox doesn't seem to agree.

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