diff --git a/packages/agentenv-protocol/src/agentenv_protocol/website_browser.py b/packages/agentenv-protocol/src/agentenv_protocol/website_browser.py
index d88120714..21fa70b74 100644
--- a/packages/agentenv-protocol/src/agentenv_protocol/website_browser.py
+++ b/packages/agentenv-protocol/src/agentenv_protocol/website_browser.py
@@ -430,7 +430,10 @@ async def capture_page(self) -> dict:
         return {**({"png": png} if png is not None else {"blank": True}), "page": self._state_of(target)}
 
     async def _capture(self, session: str) -> Optional[str]:
+        """The tab's page as it shows now; with a dialog open on it, which keeps it from painting, the last it took."""
         target = self._sessions[session]
+        if session in self._open_dialogs:
+            return self._shots.get(target)
         navigated = self.tabs.get(target, {}).get("url")
         try:
             shot = await self.devtools.call("Page.captureScreenshot", {"format": "png", "optimizeForSpeed": True},
diff --git a/packages/agentenv-protocol/tests/test_website_browser.py b/packages/agentenv-protocol/tests/test_website_browser.py
index 6ae0861fd..80fd9e910 100644
--- a/packages/agentenv-protocol/tests/test_website_browser.py
+++ b/packages/agentenv-protocol/tests/test_website_browser.py
@@ -782,7 +782,7 @@ async def call(self, method, params=None, *, session_id=None, timeout_s=None):
 
 
 @pytest.mark.asyncio
-async def test_while_a_dialog_keeps_its_page_from_painting_its_capture_is_the_last_it_took():
+async def test_while_a_dialog_keeps_its_page_from_painting_its_capture_is_the_last_it_took_without_waiting_on_it():
     devtools = Tabbed()
     control = await _tabs(devtools, "a")
     before = await control.capture()
@@ -790,6 +790,7 @@ async def test_while_a_dialog_keeps_its_page_from_painting_its_capture_is_the_la
     devtools.send("Page.javascriptDialogOpening", {"type": "alert", "message": "Saved"}, session="s-a")
 
     assert before == "png of s-a" and await control.capture() == "png of s-a"
+    assert len(devtools.timeouts) == 1
 
 
 @pytest.mark.asyncio