font-face - 按钮显示不正确（Videojs 字体在子域上不起作用）

Question

我在使用 video.js 时遇到问题。在主域上一切正常。但是在www。子域按钮未正确显示（仅显示 ）。

看起来字体在子域上不起作用。有什么想法可以解决这个问题吗？

Answer 1

VideoJS 使用自定义字体，使用@font-facevideo-js.css 中的指令定义。里面定义的路径是相对的。当 FireFox 加载字体时，它使用 CSS 文件的根 URL 并连接字体路径。

因此，在查看子域时，将从您的主域加载自定义字体。听起来不是问题，对吧？但是Firefox不允许跨域字体没有访问控制标头以确保安全。

换句话说，FireFox 通常要求从正在显示的页面的域中加载每个自定义字体。如果您正在查看www.example.com，您的字体必须来自www.example.com，而不是example.com。

你可以

1. 使用上面链接的解决方案将适当的标题添加到您的服务器（如果您有控制权）以允许“跨域”字体（www.example.com 被视为与 example.com 不同的域）
2. 从任何活跃的域动态加载 VideoJS CSS 文件。

如果你想走后一条路线，当用户查看时www.example.com，加载http://*www.*example.com/path/to/video-js/video-js.min.css. 查看时example.com，加载http://example.com/path/to/video-js/video-js.min.css。

请注意，Webkit 并不关心——似乎只是 Firefox 的问题。

Answer 2

应用这个 css 并获得输出

   @font-face {
    font-family: 'VideoJS';
    src: url('https://vjs.zencdn.net/f/1/vjs.eot');
    src: url('https://vjs.zencdn.net/f/1/vjs.eot?#iefix') format('embedded-opentype'), 
      url('https://vjs.zencdn.net/f/1/vjs.woff') format('woff'),     
      url('https://vjs.zencdn.net/f/1/vjs.ttf') format('truetype');
  }

.video-js .vjs-play-control.vjs-playing .vjs-icon-placeholder:before, .vjs-icon-pause:before {
    content: "\f103";
    font-family: 'VideoJS';
}

.video-js .vjs-mute-control .vjs-icon-placeholder:before, .vjs-icon-volume-high:before {
    content: "\f107";
    font-family: 'VideoJS';
}

.video-js .vjs-big-play-button .vjs-icon-placeholder:before, .video-js .vjs-play-control .vjs-icon-placeholder:before, .vjs-icon-play:before {
    content: "\f101";
    font-family: 'VideoJS';
}

.video-js .vjs-picture-in-picture-control .vjs-icon-placeholder:before, .vjs-icon-picture-in-picture-enter:before {
    content: "\f121";
    font-family: 'VideoJS';
}



 .video-js .vjs-fullscreen-control .vjs-icon-placeholder:before, .vjs-icon-fullscreen-enter:before {
    content: "\f108";
    font-family: 'VideoJS';
}

Answer 3

当图标呈现空白时，此解决方案对我有用：

@font-face {
    font-family: VideoJS;
    src: url(data:application/font-woff;charset=utf-8;base64,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) format("woff");
    font-weight: normal;
    font-style: normal;
}