fix(resources): resolve server_base with fallback and window.location.origin

Author: rafmacalaba

src/data360/mcp_server/resources.py

@@ -368,7 +368,7 @@ async def vega_lite_renderer(spec: str | None = None) -> str:
 
     settings = get_mcp_server_settings()
     port = settings.port or 8021
-    server_base = f"http://localhost:{port}"
+    server_base = getattr(settings, "server_base_url", None) or f"http://localhost:{port}"
     return render_template("vega_lite_renderer.jinja2", server_base=server_base, pre_loaded_spec=spec)
 
 

src/data360/templates/vega_lite_renderer.jinja2

@@ -56,7 +56,7 @@
       <pre id="error-stack"></pre>
     </div>
     <script type="module">
-      const serverBaseUrl = "{{ server_base }}";
+      const serverBaseUrl = "{{ server_base }}" || window.location.origin;
 
       function showError(message, stack) {
         document.getElementById('vis').style.display = 'none';
@@ -92,7 +92,8 @@
         logToServer("Unhandled promise rejection", { message: msg, stack: stack });
       });
 
-      import { App } from "{{ server_base }}/static/libs/ext-apps.js";
+      const extAppsUrl = serverBaseUrl + "/static/libs/ext-apps.js";
+      const { App } = await import(extAppsUrl);
 
       if (window.PRE_LOADED_SPEC) {
         vegaEmbed("#vis", window.PRE_LOADED_SPEC, {