fix: prevent caching error pages (#17100)

superset/views/base.py

@@ -420,7 +420,7 @@ def show_http_exception(ex: HTTPException) -> FlaskResponse:
         and ex.code in {404, 500}
     ):
         path = resource_filename("superset", f"static/assets/{ex.code}.html")
-        return send_file(path), ex.code
+        return send_file(path, cache_timeout=0), ex.code
 
     return json_errors_response(
         errors=[
@@ -442,7 +442,7 @@ def show_command_errors(ex: CommandException) -> FlaskResponse:
     logger.warning(ex)
     if "text/html" in request.accept_mimetypes and not config["DEBUG"]:
         path = resource_filename("superset", "static/assets/500.html")
-        return send_file(path), 500
+        return send_file(path, cache_timeout=0), 500
 
     extra = ex.normalized_messages() if isinstance(ex, CommandInvalidError) else {}
     return json_errors_response(
@@ -464,7 +464,7 @@ def show_unexpected_exception(ex: Exception) -> FlaskResponse:
     logger.exception(ex)
     if "text/html" in request.accept_mimetypes and not config["DEBUG"]:
         path = resource_filename("superset", "static/assets/500.html")
-        return send_file(path), 500
+        return send_file(path, cache_timeout=0), 500
 
     return json_errors_response(
         errors=[