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Bug：es-module-shims cause CSS inject code failed #48

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langren1353 opened this issue Aug 7, 2022 · 1 comment
Open

Bug：es-module-shims cause CSS inject code failed #48

langren1353 opened this issue Aug 7, 2022 · 1 comment

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@langren1353
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When use https://sfc.vuejs.org/ sometimes css is not in the output iframe page.
I trace the code and find when code use window.__css__，it is still nothing
this is a problem with es-module-shims witch causes normal script run as module script in twice.

here is a demo:

<html>
<head>
    <meta charset="utf-8">
    <script async="" src="https://unpkg.com/es-module-shims@1.5.5/dist/es-module-shims.wasm.js"></script>
</head>
<body>
<script>
    async function start() {
      const scripts = [
        `console.log('script run!!!!!! but run twice')`
      ]
      for(let script of scripts) {
        const scriptNode = document.createElement('script')
        scriptNode.setAttribute('type', 'module')

        scriptNode.innerHTML = script
        document.head.appendChild(scriptNode)
      }
    }
    setTimeout(() => start(), 2000)
</script>
<div>this is a test</div>
<div id="app"></div>
</body>
</html>

you will see two log with script run!!!!!! but run twice

Thus window.__css__ = 'xxxxxxxx' code was covered by window.__css__ = ''(run twice)
@langren1353
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I don't know how to fix this

Maybe remove es-module-shims.js？or maybe change the original code to make sure curCode in a module or a normal script

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@langren1353