How to embed JavaScript script in front of ,</body> tag

Dev
1

I want to change a style for video in discourse, how to embed JavaScript script before ,</body> tag

Tried editing it in the HEAD, it doesn’t work perfectly!

Thanks!

image
image1810×938 93.9 KB

      <script src="/plyr.js"></script>
    <script>
        document.addEventListener('DOMContentLoaded', function () {
            const player = new Plyr('video');
        });
    </script>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>My Video Player</title>
    <link rel="stylesheet" href="https://cdn.plyr.io/3.6.12/plyr.css">
    <script src="https://cdn.plyr.io/3.6.12/plyr.js"></script>
</head>
<body>
    <video controls>
        <source src="your-video.mp4" type="video/mp4">
    </video>


    <script>
        document.addEventListener('DOMContentLoaded', function () {
            const player = new Plyr('video');
        });
    </script>
</body>
</html>
2

Where are you changing it? In a theme component that you created in the UX? (I don’t know what that image is.)

4

It is most likely because you have not added this domain name to the CSP Policy.

很有可能是因为你没有把这个域名加入CSP Policy。

And to be honest, I recommend you to copy this js file directly and throw it in the <script> tag to prevent users from loading js from an external website. This is not safe - unless you completely trust this website.

而且说实话，我更推荐你直接把这个js文件复制过来扔在<script>标签里，以免用户还要加载外部网站的js，这并不能说安全——除非你完全信任这个网站

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image1068×200 25 KB

1 Like
5

主要是这一句啊，前面的都不是问题

    <script>
        document.addEventListener('DOMContentLoaded', function () {
            const player = new Plyr('video');
        });
    </script>
</body>
6

只能放在body结尾，这个是等页面加载完了，初始化播放器的

7

你可以用一下discourse plugin-api

You can use the discourse plugin api.

<script type="text/discourse-plugin" version="0.8">
api.decorateCookedElement((elem, helper) => {
    const player = new Plyr('video');
}, {id: "beauitfy-video"})
</script>

Ah, you only need to load once? Then pretend I didn’t say it

啊你只需要一次load？那当我没说

这毫无关系。你不是有eventListener吗？

It makes no difference. Don’t you have an eventListener?

8

:sweat_smile: 不懂怎么弄啊 要放在body前面才行

9

查了下 懂了 在这个地方添加

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11

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