HTML embed not working

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1

Hello,

I’m trying to use an HTML embed in WeWeb, but I keep encountering this error:

“Content Security Policy of your site blocks the use of ‘eval’ in JavaScript.”

The issue is that I’m not using eval() in my own code at all. After some investigation, it seems that WeWeb itself relies on eval() internally, yet the platform’s own Content Security Policy (CSP) is blocking its use.

As a result, nothing loads or functions properly—every attempt to use an HTML embed triggers this CSP error.

To test further, I even created a brand new project with nothing added, and upon publishing, the same eval() error appeared. This suggests the problem is rooted in WeWeb’s base configuration rather than anything in my custom code.

It seems like a contradiction: WeWeb appears to require eval() for embeds or other functionality, but its own CSP settings prevent it from running. Could you please confirm if this is a known issue or a bug?

Here is my weweb page link that isnt loding the chat I have in html-embed: https://e66fefdc-09f6-4e38-995d-c8e1cbda74bc.weweb-preview.io/

However this does not work and cant be used to message and it should look like below:

Screenshot 2025-06-12 100459
Screenshot 2025-06-12 100459983×478 15.4 KB

But nothing is loading or working in html

Any guidance or workaround would be greatly appreciated.

Thank you!

2

the actual error related to the embed not working is Uncaught Error: <n8nchatui-inpage> element not found.
Weweb html element renders the html in the page later than when the script you are using executes. It’s a timing problem, you need to load the script after the element is rendered in the page.

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3

Thank you very much for the reply I appreciate it.

Can you please tell me how to fix timing? How to load script after element renders ?

4

A minimal setup is: add a workflow “on mounted” on the html element and use a javascript action to create a script tag with the source of the script and append it to the document. Use wwLib.getFrontDocument() every time you would use document.
Also keep the option “refresh on resize” off in the style panel of the html element.