[question] Cannot read property 'indexOf' of undefined

Question

I found a previous result here: https://github.com/artf/grapesjs/issues/1772 however I can still not get it to work, using the most basic setup, as per your guide, and the answer given in that question. My script: and the page is simply: which results in and no functionality. Any help/advise?

artf · Accepted Answer

Any suggestions? If you can't remove prototype from the project the only possible solution I see is to put the editor in an iframe The same has been happening in my project as well, though I'm not using prototype.js, I hope there is a solution to this, any help would be appreciated! Well @goprime10 if you're not using prototype.js I'd say it's another kind of issue, "Cannot read property 'indexOf' of undefined" means nothing without, at least, a stack trace. So if you need help, create a new is...

ProxiBlue · Answer

Ok, so I figured out the issue is prototype.js! The project I am working on also loads prototype, and that is the root cause. I have tried numerous ways to prevent this, as per https://learn.jquery.com/using-jquery-core/avoid-conflicts-other-libraries/ however nothing shot of removing prototype.js from loading works. (which I cannot do) Any suggestions?

faaizalikhan1 · Answer

The same has been happening in my project as well, though I'm not using prototype.js, I hope there is a solution to this, any help would be appreciated!

Cannot read property 'indexOf' of undefined

Question

Answers (3)

Related Questions and Answers

[Question] Flag for preservation of unused styles

traits setting not work after reload

Script property using function don't work with blocks

Query for issue related to 873

Paid Plugins That Match This Issue

Related tutorials

🚀 Introducing GrapesJS Email Blocky: The Ultimate Email Block Library for GrapesJS

Browse Plugin Categories