Refused to execute inline script

Hi, Everyone.
I’m tunneling Forge and React to develop an add-on.


  - key: main
    path: static/hello-world/build
      port: 3000

However, using the Form tag from @atlaskit/form library results in the following error:

Refused to execute inline script because it violates the following Content Security Policy directive: 
"script-src 'self'". Either the 'unsafe-inline' keyword, a hash
('sha256-QAj9SgqS0tkqFXsMg6gbHzN3KfNnrPW0N0FCdMzN3MI='), or a nonce ('nonce-...') is required to
enable inline execution.
CSP violation detected for 'script-src-elem' while serving content at http://localhost:8001/
For an app to share data with external resources or use custom CSP, follow the steps in:

So I had been add the following to the meta tag.

<meta http-equiv="Content-Security-Policy" content="style-src 'self' 'unsafe-inline'" />
<meta http-equiv="Content-Security-Policy" content="script-src 'self' 'unsafe-inline'" />

However, the error has not been resolved, so I added the following to Manifest.yml by referring to the Permission document.

      - 'unsafe-inline'
      - 'unsafe-inline'   

And we proceeded with the deployment and installation.

forge deploy -e development
forge install --upgrade

And I tried a lot, but I couldn’t solve it. :disappointed_relieved:

How can I solve it?


import React from 'react';
import ReactDOM from 'react-dom';
import App from './App';

import '@atlaskit/css-reset';

        <App />


import React, { useEffect, useState } from 'react';
import Button from '@atlaskit/button';
import TextField from '@atlaskit/textfield';
import Form, { Field } from '@atlaskit/form';

import { invoke } from '@forge/bridge';

function App() {

    const [formData, setFormData] = useState(null);

    useEffect(() => {
        invoke("getText", {}).then((data) => {
            document.getElementById('textField').value = data;
    }, [])

    const onClick = async (e) => {
        const textField = document.getElementById('textField').value;
        invoke("setText", { textField }).then((data) => console.log(`setText : ${data}`));

    return (
            <TextField id='textField' style={styles.textField}></TextField>
            <Button type="submit" appearance="primary" onClick={onClick} style={styles.button}>

const styles = {
    button: {
        marginTop: 10

export default App;

P.S Installing the npm module to use Atlaskit is complete

Is your app running on port 3000?

Should the manifest.yml be updated to port: 8001?

1 Like

@DavidLee did you find a solution to this problem?

@bjornbrynjar Currently, I only set CSP settings in index.html, so it works well.
However, if there is no problem but the error occurs, the Forge will be restarted, so it is being solved first.

Also, you need to check if there is a problem with the code that you wrote.

I’m sorry I couldn’t help you much.

1 Like