skip iframe tree when exception (#4530)

skyvern/webeye/scraper/scraper.py

@@ -232,6 +232,8 @@ async def get_frame_text(iframe: Frame) -> str:
 
     try:
         text = await SkyvernFrame.evaluate(frame=iframe, expression=js_script)
+        if text is None:
+            text = ""
     except Exception:
         LOG.warning(
             "failed to get text from iframe",
@@ -445,6 +447,7 @@ async def add_frame_interactable_elements(
         )
         return elements, element_tree
 
+    try:
         skyvern_frame = await SkyvernFrame.create_instance(frame)
         await skyvern_frame.safe_wait_for_animation_end()
 
@@ -457,6 +460,8 @@ async def add_frame_interactable_elements(
                 element["children"] = frame_element_tree
 
         elements = elements + frame_elements
+    except Exception:
+        LOG.warning("Failed to build the tree of the frame, skipping frame", frame_id=skyvern_id, exc_info=True)
 
     return elements, element_tree