DEV Community: Sarthak Jain The latest articles on DEV Community by Sarthak Jain (@sarthak_jain_0708). https://dev.to/sarthak_jain_0708 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3555103%2Ff96a680d-bc4d-43b1-9a00-6f2c27a496b3.png DEV Community: Sarthak Jain https://dev.to/sarthak_jain_0708 en Error after Angular version 18 upgrade: Content Security Policy Violation Sarthak Jain Thu, 09 Oct 2025 04:44:00 +0000 https://dev.to/sarthak_jain_0708/error-after-angular-version-18-upgrade-content-security-policy-violation-46f2 https://dev.to/sarthak_jain_0708/error-after-angular-version-18-upgrade-content-security-policy-violation-46f2 <p>We recently upgraded to Angular version 18 and encountered the following error: "Refused to connect to '<a href="http://localhost:4200/.well-known/appspecific/com.chrome.devtools.json" rel="noopener noreferrer">http://localhost:4200/.well-known/appspecific/com.chrome.devtools.json</a>' because it violates the following Content Security Policy directive: "default-src 'none'". Note that 'connect-src' was not explicitly set, so 'default-src' is used as a fallback.".</p> help frontend angular security