Worker - Headless "document is not defined"
Hi @bgrand-ch unfortunately everything that involves the parser (HTML/CSS) requires the DOM related API to be available. For the CSS maybe you can try to use parser-postcss plugin, I'd expect it to work in the worker environment
Read full answer below ↓Question
GrapesJS version [X] I confirm to use the latest version of GrapesJS What browser are you using? 114.0.5735.133 Reproducible demo link Impossible to add a worker to reproduce. Describe the bug How to reproduce the bug?Add a web worker.Initialize GrapesJS with "headless" option inside the worker.Add a plugin with "editor.DomComponents.addType" + "styles".Post a message to worker.ReferenceError: document is not defined. What is the expected behavior? Use GrapesJS inside a worker without "ReferenceError: document is not defined" error. What is the current behavior? ReferenceError: document is no...
Answers (4)
Hi @bgrand-ch unfortunately everything that involves the parser (HTML/CSS) requires the DOM related API to be available. For the CSS maybe you can try to use parser-postcss plugin, I'd expect it to work in the worker environment
Hi @artf, thanks a lot for your quick answer 😄 I will try this week.
@artf The Post CSS parser plugin works perfectly in a web worker! Thanks for your help.
The ReferenceError: document is not defined you're encountering when initializing GrapesJS with headless: true inside a Web Worker, specifically when defining component styles via editor.DomComponents.addType, is a known limitation related to GrapesJS's internal CSS parsing mechanisms. Root Cause W...
Related Questions and Answers
Continue research with similar issue discussions.
Issue #6152
CSS added via custom code persists after custom code component is removed
GrapesJS version [X] I confirm to use the latest version of GrapesJS What browser are you using? any Reproducible demo link https://grapesj...
Issue #4447
Style manager does not accurately reflect inherited color
GrapesJS version [X] I confirm to use the latest version of GrapesJS What browser are you using? 103.0.5060.114 Reproducible demo link http...
Issue #6659
Symbol styles not synced
GrapesJS version [x] I confirm to use the latest version of GrapesJS What browser are you using? Firefox 145.0 (64-bit) Reproducible demo l...
Issue #5668
Sourcemap not loading for CompoentTextView
GrapesJS version [X] I confirm to use the latest version of GrapesJS What browser are you using? Version 121.0.6167.139 (Official Build) (x...
Paid Plugins That Match This Issue
Curated by issue keywords and label relevance to help you ship faster.
Loading paid plugin recommendations...
Check the open-source GrapesJS plugins on GitHub or run a quick search in our free catalog.
Browse free plugins →Premium plugins ship with support, regular updates, and production-ready features — save days of integration work.
Browse premium plugins →Related tutorials
In-depth guides on the same topic.
Tutorial
How to Build a Production GrapesJS Editor: The Complete Walkthrough of Brief, Preset, Plugins, and Services
A complete walkthrough of building a production GrapesJS editor: how to choose a preset, pick plugins, and scope setup services without burning a sprint.
Tutorial
Big Updates: TinyMCE 8 and Placeholder 2.0 for GrapesJS
In May we shipped major updates to two of our most popular GrapesJS plugins — TinyMCE Inline Text Editor and Placeholder.
Tutorial
Find the Right GrapesJS Plugin in Seconds: Smarter Discovery Is Live
We're shipping a set of discovery upgrades. New label filters, a proper compatibility switch for GrapesJS vs Studio, one-click and a smarter sort bar.
Browse Plugin Categories
Jump directly to plugin category pages on the marketplace.