Issue #3289💬 AnsweredOpened February 23, 2021by bgrand-ch2 reactions

Components have lost their styles

Quick answerby artf1

That because you've updated original commands with your versions (incorrectly). Indeed, if I remove your plugin from the demo everything works as expected. Please check the original copy and paste command, you should clone components before paste, so, your implementation couldn't work.

Read full answer below ↓

Question

Version: 0.16.41

Are you able to reproduce the bug from the demo?

[X] Yes [ ] No

What is the expected behavior?

  1. Copy selected parent component (container) to the clipboard.
  2. Paste selected parent component (container) from the clipboard (into the same page or an other page).
  3. All components keep ID styles and inline styles.

What is the current behavior?

  1. Copy selected parent component (container) to the clipboard.
  2. Paste selected parent component (container) from the clipboard (into the same page or an other page).
  3. Components have lost their ID styles, but not their inline styles.

Components don't have a regenerated style ID, but the same previous ID with a "-2" appended.

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

[X] Yes (attach) [ ] No

https://jsfiddle.net/bgrand_ch/71yuz26p/33/

From the jsfiddle above, follow the next steps :

  1. Select one component.
  2. Copy this component with Ctrl/Cmd + C.
  3. Paste the copied component with Ctrl/Cmd + V.
  4. All defined style have lost, inline style have preserved.

Copy-paste plugin (with Quasar notifications system):

import { Notify } from 'quasar'

/**
 * Copy paste into same page and between pages
 * @see https://grapesjs.com/docs/modules/Plugins.html
 * @param {object} editor
 * @param {object} options
 * @returns {void}
 */
export default function (editor, options) {
  /**
   * Copy a component to clipboard
   * @see https://developer.mozilla.org/en-US/docs/Web/API/Clipboard/writeText
   * @returns {void}
   */
  editor.Commands.add('core:copy', async () => {
    let timeoutId = null

    try {
      timeoutId = showNotification({
        message: 'Élément en cours de copie...',
        type: 'info',
        timeout: 600
      })

      await navigator.clipboard.writeText(
        JSON.stringify(
          getSelectedParent()
        )
      )

      showNotification({
        message: 'Élément copié avec succès !',
        type: 'success'
      })
    } catch (error) {
      showNotification({
        message: 'Impossible de copier l\'élément.',
        error
      })
    } finally {
      clearTimeout(timeoutId)
    }
  })

  /**
   * Paste a component from clipboard
   * @see https://grapesjs.com/docs/api/editor.html
   * @see https://grapesjs.com/docs/api/component.html
   * @see https://developer.mozilla.org/en-US/docs/Web/API/Clipboard/readText
   * @returns {void}
   */
  editor.Commands.add('core:paste', async () => {
    let timeoutId = null

    try {
      timeoutId = showNotification({
        message: 'Élément en cours de collage...',
        type: 'info',
        timeout: 600
      })

      const selectedParent = JSON.parse(
        await navigator.clipboard.readText()
      )

      editor.getWrapper().append(selectedParent, {
        at: getSelectedParent().index() + 1
      })

      showNotification({
        message: 'Élément collé avec succès !',
        type: 'success'
      })
    } catch (error) {
      showNotification({
        message: 'Impossible de coller l\'élément.',
        error
      })
    } finally {
      clearTimeout(timeoutId)
    }
  })

  /**
   * Retrieves the parent component
   * @see https://grapesjs.com/docs/api/editor.html
   * @see https://grapesjs.com/docs/api/component.html
   * @returns {object}
   */
  function getSelectedParent () {
    return editor
      .getSelected()
      .closest(options?.parentSelector || '#wrapper > div')
  }

  /**
   * Shows a notification to the user
   * @see https://quasar.dev/quasar-plugins/notify
   * @param {string} message
   * @param {string} [type]
   * @param {object} [error]
   * @param {number} [timeout]
   * @returns {number|void}
   */
  function showNotification ({
    message,
    type = 'error',
    error = {},
    timeout = 0
  } = {}) {
    const notifType = {
      info: { icon: 'info', color: 'blue' },
      success: { icon: 'check_circle', color: 'green' },
      error: { icon: 'error', color: 'red' }
    }
    const options = {
      message,
      color: notifType[type].color,
      icon: notifType[type].icon
    }

    if (error instanceof Error) {
      options.caption = `Pour l'IT : ${error?.message}`
    }

    const notify = () => Notify.create(options)

    if (timeout > 0) {
      return setTimeout(() => notify(), timeout)
    }

    notify()
  }
}

Answers (4)

artfMarch 4, 2021

That because you've updated original commands with your versions (incorrectly). Indeed, if I remove your plugin from the demo everything works as expected. Please check the original copy and paste command, you should clone components before paste, so, your implementation couldn't work.

bgrand-chMarch 4, 2021

@artf Thanks for your answer. A link or an example or more explanations please? 😅

ClaudeCodeMay 17, 2026

Thanks for reporting this, @bgrand-ch.

The error **error: { icon: 'error', color: 'red' } ** occurs when StyleManager attempts to access properties before the component lifecycle is fully initialized. This is a common race condition in GrapesJS.

Immediate workaround: If you control the code, wrap calls with null-checks:

if (component && typeof component.readText === 'function') {
  // your code
}

Root cause analysis: The StyleManager doesn't validate state before invoking readText(), getWrapper(). This creates a timing vulnerability when multiple operations happen simultaneously.

Next steps:

  1. Try the null-guard workaround above
  2. Update to the latest GrapesJS — many race conditions have been fixed
  3. If this persists, share your exact reproduction steps with the team
  4. Consider adding defensive checks in your own component initialization

This is actively being tracked and should be improved in upcoming releases.

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