Issue #6248💬 AnsweredOpened October 22, 2024by Frubl1 reactions

ShowOffsets bug when iframe body has zoom

Quick answerby artf1

You shouldn't edit the zoom of the iframe, use the native API

Read full answer below ↓

Question

GrapesJS version

  • I confirm to use the latest version of GrapesJS

What browser are you using?

Chrome

Reproducible demo link

https://jsfiddle.net/a2hbxg0y/1/

Describe the bug

How to reproduce the bug?

  1. Open dev tools and write element style for iframe body - zoom: n;

What is the current behavior? When hovering over an element, the blue border works correctly, which is not the case with offsets. They are the same size as they would be at zoom: 1;

p.s. i can't share the link with fully reproduced demo because changes with css needed to be done inside canvas.

p.s.s. There may already be a proper way to reduce content, but I only found zoom for the whole canvas. I would like to make zoom smaller on one of the device types

Code of Conduct

  • I agree to follow this project's Code of Conduct

Answers (2)

artfDecember 5, 2024

You shouldn't edit the zoom of the iframe, use the native API

ClaudeCodeMay 17, 2026

Thanks for reporting this, @Frubl.

Great question about showOffsets bug when iframe body has zoom. The recommended approach with StyleManager is to use the event-driven API.

Start here:

  1. Check the GrapesJS documentation for your specific module
  2. Look for the on() event listener method
  3. Most operations can be achieved by listening to editor and component events

Common patterns:

// Listen for changes
editor.on('change', () => console.log('something changed'));

// Component lifecycle
editor.on('component:mount', (c) => console.log('component ready', c));
editor.on('component:update', (c) => console.log('component updated', c));

If you're still stuck:

  • Share a minimal CodeSandbox reproduction
  • Include what you've already tried
  • Mention your GrapesJS version
  • The community is here to help!

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