Harrison/playwright selector (#3185)

Co-authored-by: zhyuri <4649294+zhyuri@users.noreply.github.com>

langchain/document_loaders/url_playwright.py

@@ -67,9 +67,10 @@ class PlaywrightURLLoader(BaseLoader):
                     page.goto(url)
 
                     for selector in self.remove_selectors or []:
-                        element = page.locator(selector)
-                        if element.is_visible():
-                            element.evaluate("element => element.remove()")
+                        elements = page.locator(selector).all()
+                        for element in elements:
+                            if element.is_visible():
+                                element.evaluate("element => element.remove()")
 
                     page_source = page.content()
                     elements = partition_html(text=page_source)

tests/integration_tests/document_loaders/test_url_playwright.py

@@ -0,0 +1,21 @@
+"""Tests for the Playwright URL loader"""
+
+from langchain.document_loaders import PlaywrightURLLoader
+
+
+def test_playwright_url_loader() -> None:
+    """Test Playwright URL loader."""
+    urls = [
+        "https://www.youtube.com/watch?v=dQw4w9WgXcQ",
+        "https://goo.gl/maps/NDSHwePEyaHMFGwh8",
+        "https://techmeme.com",
+        "https://techcrunch.com",
+    ]
+    loader = PlaywrightURLLoader(
+        urls=urls,
+        remove_selectors=["header", "footer"],
+        continue_on_failure=False,
+        headless=True,
+    )
+    docs = loader.load()
+    assert len(docs) > 0