Fix issue with taking screenshots in headless mode

Author: mdmintz

seleniumbase/core/browser_launcher.py

@@ -670,6 +670,9 @@ def _set_chrome_options(
     chrome_options.add_argument("--disable-translate")
     if not enable_3d_apis:
         chrome_options.add_argument("--disable-3d-apis")
+    if headless or headless2 or is_using_uc(undetectable, browser_name):
+        chrome_options.add_argument("--disable-renderer-backgrounding")
+    chrome_options.add_argument("--disable-backgrounding-occluded-windows")
     if (
         is_using_uc(undetectable, browser_name)
         and (
@@ -2062,6 +2065,9 @@ def get_local_driver(
         edge_options.add_argument("--disable-prompt-on-repost")
         if not enable_3d_apis:
             edge_options.add_argument("--disable-3d-apis")
+        if headless or headless2 or is_using_uc(undetectable, browser_name):
+            edge_options.add_argument("--disable-renderer-backgrounding")
+        edge_options.add_argument("--disable-backgrounding-occluded-windows")
         if (
             selenium4_or_newer
             and page_load_strategy

seleniumbase/undetected/__init__.py

@@ -225,8 +225,6 @@ def __init__(
                     "--password-store=basic",
                 ]
             )
-        options.add_argument("--disable-renderer-backgrounding")
-        options.add_argument("--disable-backgrounding-occluded-windows")
         if headless or options.headless:
             options.headless = True
             options.add_argument("--no-sandbox")