Issue #4612πŸ’¬ AnsweredOpened Sep 23, 2022by Drew-Daniels1 reactions

Cannot Drop MJML Components onto Blank Canvas after version 0.19.4

Quick answerby artf❀ 1

Thanks for the report Drew, this seems to be related to the Standards mode of the iframes. At the moment to fix it, I'd suggest switching to the Quirks mode by removing the doctype: I'm closing the issue as it's not really related to the core, soon I'll update the mjml plugin in order to support properly the Standards...

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Question

GrapesJS version [X] I confirm to use the latest version of GrapesJS What browser are you using? 105.0.5195.125 (Official Build) (x86_64) Reproducible demo link https://codesandbox.io/s/grapesjs-grapesjs-mjml-react-bug-w7qtec?file=/src/index.js Describe the bug How to reproduce the bug?Start with a blank canvasTry dragging a grapesjs-mjml block editor component onto the blank canvas.See that you cannot, and receive this warning logged to console: Video: There's a delay in the logged warning because CodeSandbox is being slow: screen-capture (3).webmCode: I've reproduced the code in this reposi...

Answers (2)

artfβ€’ Sep 25, 2022

Thanks for the report Drew, this seems to be related to the Standards mode of the iframes. At the moment to fix it, I'd suggest switching to the Quirks mode by removing the doctype: I'm closing the issue as it's not really related to the core, soon I'll update the mjml plugin in order to support pr...

GJSBlockβ€’ May 17, 2026

Thanks for reporting this, @Drew-Daniels. Great question about Cannot Drop MJML Components onto Blank Canvas after version 0.19.4. The recommended approach with ProseMirror is to use the event-driven API. Start here: Check the GrapesJS documentation for your specific module Look for the on() event...

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