update

ts_web/elements/sio-pdf-viewer.ts

@@ -393,7 +393,15 @@ export class SioPdfViewer extends DeesElement {
   public async connectedCallback() {
     await super.connectedCallback();
     
-    // Set up resize observer for responsive rendering
+    if (this.url) {
+      await this.loadPdf();
+    }
+  }
+  
+  protected async firstUpdated() {
+    await super.firstUpdated();
+    
+    // Set up resize observer for responsive rendering after first render
     const container = this.shadowRoot?.querySelector('.pdf-container');
     if (container) {
       this.resizeObserver = new ResizeObserver(() => {
@@ -403,10 +411,6 @@ export class SioPdfViewer extends DeesElement {
       });
       this.resizeObserver.observe(container);
     }
-    
-    if (this.url) {
-      await this.loadPdf();
-    }
   }
 
   public async updated(changedProperties: Map<string | number | symbol, unknown>) {