Nuxt•2d ago

Content-Security-Policy with nuxt scripts gtm

Hello, I use this : https://scripts.nuxt.com/scripts/tracking/google-tag-manager I now have this error on a Firefox based browser : Content-Security-Policy: The page’s settings blocked an inline script (script-src-elem) from being executed because it violates the following directive: “script-src http: https:” What to do ?

Nuxt Scripts

Google Tag Manager · Nuxt Scripts

Use Google Tag Manager in your Nuxt app.

9 Replies

kapa.ai•2d ago

Hi @Omnislash. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- To address the Content Security Policy (CSP) issue you're experiencing with Google Tag Manager (GTM) in your Nuxt application, you need to adjust your CSP settings to allow the inline script from GTM. Here's what you can do: 1. Use a nonce attribute for the GTM script: The Nuxt Scripts module for Google Tag Manager doesn't directly provide a way to add a nonce attribute. However, you can use a similar approach as described in the Nuxt Image documentation for adding a nonce: Nuxt Image nonce usage You'll need to generate a nonce value and add it to your CSP header as well as to the GTM script. 2. Alternatively, you can add the GTM domain to your CSP: Modify your Content Security Policy to include the Google Tag Manager domain. Add <https://www.googletagmanager.com> to your script-src directive. 3. As a last resort, you could use unsafe-inline in your CSP, but this is not recommended for security reasons. If you're using a module like nuxt-security to manage your CSP, you'll need to configure it to allow the GTM script. Unfortunately, the provided knowledge sources don't contain specific information about implementing CSP with Nuxt Scripts and Google Tag Manager. For the most up-to-date and specific guidance, you may want to check the official Nuxt Scripts documentation or open an issue on their GitHub repository to request support for CSP-compliant implementation of GTM. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2d ago

<@305772639438503936> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

OmnislashOP•2d ago

@kapa.ai how and where can I modify my conbtent security policy to add the GTM script

kapa.ai•2d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- To modify your Content Security Policy (CSP) to add the Google Tag Manager (GTM) script in a Nuxt application, you have a few options: 1. Using Nuxt Config:
You can add the CSP headers directly in your nuxt.config.ts file. Here's an example of how you might do this:

   export default defineNuxtConfig({
     nitro: {
       routeRules: {
         '/**': {
           headers: {
             'Content-Security-Policy': "script-src 'self' <https://www.googletagmanager.com;">
           }
         }
       }
     }
   })

   export default defineNuxtConfig({
     nitro: {
       routeRules: {
         '/**': {
           headers: {
             'Content-Security-Policy': "script-src 'self' <https://www.googletagmanager.com;">
           }
         }
       }
     }
   })

This method adds the CSP header to all routes. You'll need to adjust the CSP directive to include other necessary sources for your application. 2. Using a server middleware: You can create a server middleware to add the CSP headers. Create a file in your server/middleware directory, for example csp.ts:

   export default defineEventHandler((event) => {
     appendHeader(event, 'Content-Security-Policy', "script-src 'self' <https://www.googletagmanager.com;">)
   })

   export default defineEventHandler((event) => {
     appendHeader(event, 'Content-Security-Policy', "script-src 'self' <https://www.googletagmanager.com;">)
   })

3. Using a module like nuxt-security: If you're using a module to manage your security headers, you'll need to configure it according to its documentation. For example, with nuxt-security, you might do something like this in your nuxt.config.ts:

   export default defineNuxtConfig({
     security: {
       headers: {
         contentSecurityPolicy: {
           'script-src': ["'self'", '<https://www.googletagmanager.com']>
         }
       }
     }
   })

   export default defineNuxtConfig({
     security: {
       headers: {
         contentSecurityPolicy: {
           'script-src': ["'self'", '<https://www.googletagmanager.com']>
         }
       }
     }
   })

Remember to include other necessary sources in your CSP directive, not just the GTM domain. The exact configuration will depend on your specific needs and the other scripts and resources your application uses. It's important to note that while these methods should work, the knowledge sources provided don't contain specific information about implementing CSP with Nuxt and Google Tag Manager. For the most up-to-date and accurate information, you should refer to the official Nuxt documentation or the documentation of any security modules you're using. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2d ago

<@305772639438503936> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

OmnislashOP•2d ago

@kapa.ai I tried the solution 1, but it's breaking a lot of other things Do you have a standard CSP for nuxt 3 that doesn't break anything and allows gtm and analytics ?

kapa.ai•2d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- I apologize for the inconvenience caused by the previous suggestion. You're right that a too-restrictive Content Security Policy (CSP) can break functionality. Unfortunately, the knowledge sources provided don't contain a standard CSP configuration for Nuxt 3 that allows Google Tag Manager (GTM) and analytics without breaking other features. However, I can provide some general guidance based on best practices: 1. Start with a permissive policy and gradually restrict it: Begin with a more permissive CSP and then tighten it as you identify which resources are actually needed. This approach helps prevent breaking functionality while you're setting up your CSP. 2. Use nonces for inline scripts: As mentioned in the Nuxt Image documentation, you can use nonces to allow specific inline scripts. This is more secure than using unsafe-inline. 3. Allow necessary domains: For GTM and Google Analytics, you typically need to allow the following domains in your script-src directive: - <https://www.googletagmanager.com> - <https://www.google-analytics.com> - <https://ssl.google-analytics.com> 4. Consider using report-only mode: You can use the Content-Security-Policy-Report-Only header initially to monitor violations without breaking functionality. Here's a sample CSP that might work as a starting point:

script-src 'self' 'nonce-{RANDOM_NONCE}' <https://www.googletagmanager.com> <https://www.google-analytics.com> <https://ssl.google-analytics.com;>
style-src 'self' 'unsafe-inline';
img-src 'self' data: https:;
connect-src 'self' <https://www.google-analytics.com;>

script-src 'self' 'nonce-{RANDOM_NONCE}' <https://www.googletagmanager.com> <https://www.google-analytics.com> <https://ssl.google-analytics.com;>
style-src 'self' 'unsafe-inline';
img-src 'self' data: https:;
connect-src 'self' <https://www.google-analytics.com;>

Remember to replace {RANDOM_NONCE} with an actual nonce value that you generate for each request. To implement this in your Nuxt 3 application, you could use the nitro.routeRules in your nuxt.config.ts:

export default defineNuxtConfig({
  nitro: {
    routeRules: {
      '/**': {
        headers: {
          'Content-Security-Policy': "script-src 'self' 'nonce-{RANDOM_NONCE}' <https://www.googletagmanager.com> <https://www.google-analytics.com> <https://ssl.google-analytics.com;> style-src 'self' 'unsafe-inline'; img-src 'self' data: https:; connect-src 'self' <https://www.google-analytics.com;">
        }
      }
    }
  }
})

export default defineNuxtConfig({
  nitro: {
    routeRules: {
      '/**': {
        headers: {
          'Content-Security-Policy': "script-src 'self' 'nonce-{RANDOM_NONCE}' <https://www.googletagmanager.com> <https://www.google-analytics.com> <https://ssl.google-analytics.com;> style-src 'self' 'unsafe-inline'; img-src 'self' data: https:; connect-src 'self' <https://www.google-analytics.com;">
        }
      }
    }
  }
})

Please note that this is a general suggestion and may need to be adjusted based on your specific Nuxt 3 application's needs. You should test this configuration thoroughly and adjust it as necessary. If you continue to experience issues, you may want to consult the official Nuxt documentation or seek assistance from the Nuxt community forums for more specific guidance. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2d ago

<@305772639438503936> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

OmnislashOP•2d ago

Looks like my browser is not up to date my bad for using something a bit exotic ^^"

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Content-Security-Policy with nuxt scripts gtm

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