flask render_template csp

Import the necessary module:

from flask import Flask, render_template

Create a Flask application instance:

app = Flask(__name__)

Define a route for the desired endpoint:

@app.route('/example')

Create a function to handle the route:

def example():

Define a content security policy (CSP) header using the Content-Security-Policy response header:

    csp_header = {
        'default-src': "'self'",
        'style-src': "'unsafe-inline'",
        'script-src': "'unsafe-inline' 'self'",
    }

Pass the CSP header to the render_template function as a keyword argument:

    return render_template('example.html', csp=csp_header)

In the HTML template (example.html), access and apply the CSP header using the meta tag:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta http-equiv="Content-Security-Policy" content="{{ csp }}">
    <!-- Other head elements -->
</head>
<body>
    <!-- Body content -->
</body>
</html>

Note: The above example includes a simple CSP header. Adjust the values according to your security requirements.