Return force /api append for Legacy ooba with relaxed URL off

public/scripts/textgen-settings.js

@@ -153,6 +153,10 @@ function formatTextGenURL(value) {
         if (url.pathname === '/api' && !textgenerationwebui_settings.legacy_api) {
             toastr.info(`Enable compatibility mode or update ooba-webui to the latest version.`, 'Legacy API URL detected. Generation may fail.');
         }
+
+        if (!power_user.relaxed_api_urls && textgenerationwebui_settings.legacy_api && !isMancer()) {
+            url.pathname = '/api';
+        }
         return url.toString();
     } catch { } // Just using URL as a validation check
     return null;