Google Tag Manager

CSP for Google Tag Manager

marketing
utilities
Add Package to Your CSP

Using Google Tag Manager with Content Security Policy

The most popular Tag manager in the world - will inject any tag/script into your site, as defined in the Google configurations. Note that it may require you to additionally add 'unsafe-inline' / 'unsafe-eval' based on your usage.

Allow these directives in your CSP, to support Google Tag Manager in your Content Security Policy:

script-src
  https://www.googletagmanager.com
  https://googletagmanager.com;
frame-src
  www.googletagmanager.com;
child-src
  www.googletagmanager.com;
img-src
  data:
  www.googletagmanager.com;
font-src
  data:;
connect-src
  www.googletagmanager.com;

The main domains used by Google Tag Manager are:

googletagmanager.com

Example Content-Security-Policy violations / reports:

Using the above CSP package, will fix these errors that you may be seeing in your console logs:

script-src/script-src-elem/script-src-attrviolations

Refused to load the script 'https://www.googletagmanager.com/gtm.js?id=GTM-*' because it violates the following Content Security Policy directive: "script-src 'self' 'report-sample'". Note that 'script-src-elem' was not explicitly set, so 'script-src' is used as a fallback.

If you see inline script errors, you need to add SHA-256 hashes / nonces to your CSP with RapidSec:

Refused to execute inline script because it violates the following Content Security Policy directive: "script-src 'self' 'report-sample'". Either the 'unsafe-inline' keyword, a hash ('sha256-RFWPLDbv2BY+rCkDzsE+0fr8ylGr2R2faWMhq4lfEQc='), or a nonce ('nonce-...') is required to enable inline execution.

If you see inline eval() errors, RapidSec will generate your CSP with the specific content of the errors:

Refused to evaluate a string as JavaScript because 'unsafe-eval' is not an allowed source of script in the following Content Security Policy directive: "script-src 'self' 'report-sample'".

style-src/style-src-elem/style-src-attrviolations

Refused to load the stylesheet 'googletagmanager.com' because it violates the following Content Security Policy directive: "style-src 'self' 'report-sample'". Note that 'style-src-elem' was not explicitly set, so 'style-src' is used as a fallback.

If you see inline style errors, you need to add SHA-256 hashes / nonces to your CSP with RapidSec:

Refused to apply inline style because it violates the following Content Security Policy directive: "style-src 'self' 'report-sample'". Either the 'unsafe-inline' keyword, a hash ('sha256-RFWPLDbv2BY+rCkDzsE+0fr8ylGr2R2faWMhq4lfEQc='), or a nonce ('nonce-...') is required to enable inline execution.

font-srcviolations

Refused to load the font 'googletagmanager.com' because it violates the following Content Security Policy directive: "font-src 'self'"

img-srcviolations

Refused to load the image 'googletagmanager.com' because it violates the following Content Security Policy directive: "img-src 'self'".

frame-srcviolations

[Report Only] Refused to frame 'googletagmanager.com' because it violates the following Content Security Policy directive: "frame-src 'self'".

form-actionviolations

[Report Only] Refused to send form data to 'googletagmanager.com' because it violates the following Content Security Policy directive: "form-action 'self'".

connect-srcviolations

[Report Only] Refused to connect to 'googletagmanager.com' because it violates the following Content Security Policy directive: "connect-src 'self'"