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Components are not selectable with Vue devtools when mounted in a shadowDom #1849

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p-gerard opened this issue Apr 28, 2022 · 2 comments
Open

Components are not selectable with Vue devtools when mounted in a shadowDom #1849

p-gerard opened this issue Apr 28, 2022 · 2 comments

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@p-gerard
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Version

6.1.4

Browser and OS info

Chrome 100.0.4896.127 / macOS monterey 12.3.1

Steps to reproduce

Serve the HTML file below.

Components in the first Vue app are selectable with the Vue devtools.

Components in the second Vue app, mounted in a shadowDom, are not.

<!DOCTYPE html>
<html>
<head>
  <title>Vue devtools shadowDom test</title>
  <script src="https://unpkg.com/vue@2.6.11"></script>
  <script>
    class MyWebComponent extends HTMLElement {
      constructor() {
        super();
      }
    }
    customElements.define('my-web-component', MyWebComponent);
  </script>
</head>
<body>

  <div id="std-app"></div>

  <my-web-component></my-web-component>

  <script>
    Vue.component('my-vue-component', {
      template: '<h1>{{ message }}</h1>',
      props: ['message']
    });

    const standardApp = new Vue({
      name: 'StandardApp',
      el: '#std-app',
      template: `
      <div>
        <my-vue-component message="standard app - select component works" />
      </div>`,
    })

    const myWebComponent = document.querySelector('my-web-component');
    const shadow = myWebComponent.attachShadow({ mode: 'open' });
    const shadowDiv = document.createElement('div');
    shadow.appendChild(shadowDiv);

    new Vue({
      name: 'ShadowApp',
      template: `
      <div>
        <my-vue-component message="shadow app - select component doesn't work" />
      </div>`,
    }).$mount(shadowDiv);
  </script>
</body>
</html>

What is expected?

Components in the second Vue app, mounted in a shadowDom should be selectable with the Vue devtools.

What is actually happening?

Components in the second Vue app, mounted in a shadowDom are not selectable with the Vue devtools.
@NielsJorck
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Issue is in the core project: vuejs/core#4356
Also same issue already in the devtool project here: https://github.com/vuejs/devtools/issues/1673

@larryval
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p-gerard have you succed for this problem ?

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3 participants
@larryval @NielsJorck @p-gerard