umd package missing .js

[deyihu]

Describe the bug

umd package

Browser cannot recognize .cjs

The browser will not run the scripts inside

To Reproduce

Code

  <script type="text/javascript" src="https://unpkg.com/three@0.138.0/build/three.min.js"></script>
<script src="https://unpkg.com/three-mesh-bvh@0.6.8/build/index.umd.cjs"></script>

Live example

-

Expected behavior

umd package Should use js as the extension

  <script type="text/javascript" src="https://unpkg.com/three@0.138.0/build/three.min.js"></script>
<script src="https://unpkg.com/three-mesh-bvh@0.6.8/build/index.umd.js"></script>

need update rollup config

{
        input: './src/index.js',
        treeshake: false,
        external: p => /^three/.test( p ),

        output: {

            name: 'MeshBVHLib',
            extend: true,
            format: 'umd',
            file: './build/index.umd.js',
            sourcemap: true,

            globals: p => /^three/.test( p ) ? 'THREE' : null,

        },

    },

Screenshots

If applicable, add screenshots to help explain your problem (drag and drop the image).

Platform:

• Device: [Desktop, Mobile, ...]
• OS: [Windows, MacOS, Linux, Android, iOS, ...]
• Browser: [Chrome, Firefox, Safari, Edge, ...]
• Three.js version: [r???]
• Library version: [v???]

[gkjohnson]

There's not browser requirement that javascript files end with a .js extension - this is an issue with unpkg.com setting the returned content type to "text/plain" rather than "application/javascript" in the response headers. Please report it to them. Both .cjs and .mjs extensions are used fairly broadly to distinguish module-style js files and commonjs-style ones.