set default browser locale to none (#4564)

Author: LawyZheng

skyvern/config.py

@@ -126,7 +126,7 @@ class Settings(BaseSettings):
     SMTP_PASSWORD: str = "password"
 
     # browser settings
-    BROWSER_LOCALE: str = "en-US"
+    BROWSER_LOCALE: str | None = None  # "en-US"
     BROWSER_TIMEZONE: str = "America/New_York"
     BROWSER_WIDTH: int = 1920
     BROWSER_HEIGHT: int = 1080

skyvern/webeye/browser_factory.py

@@ -237,7 +237,6 @@ def build_browser_args(
             LOG.info("Extensions added to browser args", extensions=joined_paths)
 
         args = {
-            "locale": settings.BROWSER_LOCALE,
             "color_scheme": "no-preference",
             "args": browser_args,
             "ignore_default_args": [
@@ -251,6 +250,8 @@ def build_browser_args(
             },
             "extra_http_headers": extra_http_headers,
         }
+        if settings.BROWSER_LOCALE:
+            args["locale"] = settings.BROWSER_LOCALE
 
         if settings.ENABLE_PROXY:
             proxy_config = setup_proxy()