Update .ic-assets.json5

src/dfx/assets/project_templates/vanilla_js/src/__frontend_name__/assets/.ic-assets.json5

@@ -8,7 +8,7 @@
     // Options are: "hardened" | "standard" | "disabled".
     "security_policy": "standard",
     "headers": {
-      "Content-Security-Policy": "default-src 'self';script-src 'self' 'unsafe-eval' 'unsafe-inline';connect-src 'self' http://localhost:* https://icp0.io https://*.icp0.io https://icp-api.io;img-src 'self' data:;style-src * 'unsafe-inline';style-src-elem * 'unsafe-inline';font-src *;object-src 'none';base-uri 'self';frame-ancestors 'none';form-action 'self';",
+      "Content-Security-Policy": "default-src 'self';script-src 'self' 'unsafe-eval' 'unsafe-inline';connect-src 'self' http://localhost:* https://icp0.io https://*.icp0.io https://icp-api.io;img-src 'self' data:;style-src * 'unsafe-inline';style-src-elem * 'unsafe-inline';font-src *;object-src 'none';base-uri 'self';frame-ancestors 'none';form-action 'self';upgrade-insecure-requests;",
     },
     // Uncomment to disable the warning about using the
     // standard security policy, if you understand the risk