1 files changed, 11 insertions, 1 deletions
diff --git a/testing/web-platform/tests/webdriver/tests/support/fixtures_bidi.py b/testing/web-platform/tests/webdriver/tests/support/fixtures_bidi.py
index 32919210bf..c76b369f21 100644
--- a/testing/web-platform/tests/webdriver/tests/support/fixtures_bidi.py
+++ b/testing/web-platform/tests/webdriver/tests/support/fixtures_bidi.py
@@ -538,7 +538,12 @@ def fetch(bidi_session, top_context, configuration):
     """
 
     async def fetch(
-        url, method="GET", headers=None, context=top_context, timeout_in_seconds=3
+        url,
+        method="GET",
+        headers=None,
+        post_data=None,
+        context=top_context,
+        timeout_in_seconds=3,
     ):
         method_arg = f"method: '{method}',"
 
@@ -546,6 +551,10 @@ def fetch(bidi_session, top_context, configuration):
         if headers is not None:
             headers_arg = f"headers: {json.dumps(headers)},"
 
+        body_arg = ""
+        if post_data is not None:
+            body_arg = f"body: {post_data},"
+
         timeout_in_seconds = timeout_in_seconds * configuration["timeout_multiplier"]
         # Wait for fetch() to resolve a response and for response.text() to
         # resolve as well to make sure the request/response is completed when
@@ -558,6 +567,7 @@ def fetch(bidi_session, top_context, configuration):
                    fetch("{url}", {{
                      {method_arg}
                      {headers_arg}
+                     {body_arg}
                      signal: controller.signal,
                    }}).then(response => response.text());
                  }}""",