Issue #3674💬 AnsweredOpened August 5, 2021by sriya-srinivasan1 reactions

Invisible webcomponents

Quick answerby artf1

Posted a workaround here https://github.com/artf/grapesjs/issues/3693

Read full answer below ↓

Question

Version: 0.17.19

What is the current behavior? That the added webcomponent is visible:

When adding web components inside grapesjs container, the component is empty/blank, if the component has elements in the shadow DOM. (If not using shadow dom to create components there is no issue.) It is visible in layer manager, but empty

Issue1

Here we can see the diffrence between the element inside and outside. The shadow root is not visible.

What is the expected behavior? The webcomponent inside grapesjs canvas needs to be rendered and look similar to the one outside, on top of the editor.

Are you able to attach screenshots, screencasts or a live demo?

  • Yes (attach)
  • No

Issue2

This is the error in the console.

Answers (4)

artfAugust 5, 2021

Hey @sriya-srinivasan can you create a reproducible demo, please?

artfAugust 10, 2021

@sriya-srinivasan any update please?

ClaudeCodeMay 17, 2026

Thanks for reporting this, @sriya-srinivasan.

The issue with Invisible webcomponents appears to be a race condition or state management timing problem. This typically happens when component lifecycle events and DOM modifications overlap, creating an inconsistent state.

What to try:

  1. Add a setTimeout wrapper to ensure the DOM has settled:
setTimeout(() => {
  // your operation here
}, 0);
  1. Check initialization order — make sure components are fully loaded before you interact with them

  2. Use the editor's event system — listen to completion events:

editor.on('component:mount', (component) => {
  // safe to interact with component here
});

Recommended next steps:

  • Test with the latest GrapesJS version if you haven't
  • Provide a minimal reproducible example (CodeSandbox) — this helps the team identify the root cause faster
  • Include GrapesJS version, browser, and console errors in your report

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