SVG无法在Firefox中运行

Question

我们目前正在开发新网站，我们决定使用一些新的SVG功能。

在我们的一个项目页面上，我们有一个SVG动画，它遵循路径并绘制轮廓，然后淡入最终完成的图像。 （见下图）

我们目前的问题是绘制轮廓的SVG动画不会在Firefox中显示，最终图像按计划淡入，我们已经在其他浏览器（如Chrome，Safari）中进行了测试，一切都按照我们设想的方式进行。

如果有人能指出我们正确的方向，我们将非常感激。谢谢。

网址 - http://labs.madebyanalogue.co.uk/analogue/work/lucky-voice-app.php

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