[Web] add cors to json_api

data/web/lang/lang.de-de.json

@@ -147,6 +147,7 @@
         "change_logo": "Logo ändern",
         "configuration": "Konfiguration",
         "convert_html_to_text": "Konvertiere HTML zu reinem Text",
+        "cors_settings": "CORS Einstellungen",
         "credentials_transport_warning": "<b>Warnung</b>: Das Hinzufügen einer neuen Regel bewirkt die Aktualisierung der Authentifizierungsdaten aller vorhandenen Einträge mit identischem Next Hop.",
         "customer_id": "Kunde",
         "customize": "UI-Anpassung",
@@ -996,6 +997,7 @@
         "bcc_deleted": "BCC-Map-Einträge gelöscht: %s",
         "bcc_edited": "BCC-Map-Eintrag %s wurde geändert",
         "bcc_saved": "BCC- Map-Eintrag wurde gespeichert",
+        "cors_headers_edited": "CORS headers wurden erfolgreich gespeichert",
         "db_init_complete": "Datenbankinitialisierung abgeschlossen",
         "delete_filter": "Filter-ID %s wurde gelöscht",
         "delete_filters": "Filter gelöscht: %s",

data/web/lang/lang.en-gb.json

@@ -133,6 +133,8 @@
         "admins": "Administrators",
         "admins_ldap": "LDAP Administrators",
         "advanced_settings": "Advanced settings",
+        "allowed_methods": "Access-Control-Allow-Methods",
+        "allowed_origins": "Access-Control-Allow-Origin",
         "api_allow_from": "Allow API access from these IPs/CIDR network notations",
         "api_info": "The API is a work in progress. The documentation can be found at <a href=\"/api\">/api</a>",
         "api_key": "API key",
@@ -149,6 +151,7 @@
         "change_logo": "Change logo",
         "configuration": "Configuration",
         "convert_html_to_text": "Convert HTML to plain text",
+        "cors_settings": "CORS Settings",
         "credentials_transport_warning": "<b>Warning</b>: Adding a new transport map entry will update the credentials for all entries with a matching next hop column.",
         "customer_id": "Customer ID",
         "customize": "Customize",
@@ -358,6 +361,7 @@
         "bcc_exists": "A BCC map %s exists for type %s",
         "bcc_must_be_email": "BCC destination %s is not a valid email address",
         "comment_too_long": "Comment too long, max 160 chars allowed",
+        "cors_invalid_method": "Invalid Allow-Method specified",
         "defquota_empty": "Default quota per mailbox must not be 0.",
         "demo_mode_enabled": "Demo Mode is enabled",
         "description_invalid": "Resource description for %s is invalid",
@@ -1003,6 +1007,7 @@
         "bcc_deleted": "BCC map entries deleted: %s",
         "bcc_edited": "BCC map entry %s edited",
         "bcc_saved": "BCC map entry saved",
+        "cors_headers_edited": "CORS headers successfully set.",
         "db_init_complete": "Database initialization completed",
         "delete_filter": "Deleted filters ID %s",
         "delete_filters": "Deleted filters: %s",