diff --git a/radicale/app/post.py b/radicale/app/post.py
index 723b8e9..a3de951 100644
--- a/radicale/app/post.py
+++ b/radicale/app/post.py
@@ -26,5 +26,4 @@ class ApplicationPostMixin:
         """Manage POST request."""
         if path == "/.web" or path.startswith("/.web/"):
             return self._web.post(environ, base_prefix, path, user)
-
         return httputils.METHOD_NOT_ALLOWED
diff --git a/radicale/tests/__init__.py b/radicale/tests/__init__.py
index 1824bd1..e2e283e 100644
--- a/radicale/tests/__init__.py
+++ b/radicale/tests/__init__.py
@@ -104,8 +104,8 @@ class BaseTest:
         self._check_status(status, 200, check)
         return status, answer
 
-    def post(self, path, check=True, **args):
-        status, _, answer = self.request("POST", path, **args)
+    def post(self, path, data=None, check=True, **args):
+        status, _, answer = self.request("POST", path, data, **args)
         self._check_status(status, 200, check)
         return status, answer
 
diff --git a/radicale/tests/custom/web.py b/radicale/tests/custom/web.py
index 7d11902..3a8f5bd 100644
--- a/radicale/tests/custom/web.py
+++ b/radicale/tests/custom/web.py
@@ -29,4 +29,5 @@ class Web(web.BaseWeb):
         return client.OK, {"Content-Type": "text/plain"}, "custom"
 
     def post(self, environ, base_prefix, path, user):
-        return client.OK, {"Content-Type": "text/plain"}, "custom post"
+        answer = "echo:" + environ["wsgi.input"].read().decode()
+        return client.OK, {"Content-Type": "text/plain"}, answer
diff --git a/radicale/tests/test_web.py b/radicale/tests/test_web.py
index f5fed54..5d2b792 100644
--- a/radicale/tests/test_web.py
+++ b/radicale/tests/test_web.py
@@ -48,6 +48,7 @@ class TestBaseWebRequests(BaseTest):
         assert headers.get("Location") == ".web/"
         _, answer = self.get("/.web/")
         assert answer
+        self.post("/.web", check=405)
 
     def test_none(self):
         self.configuration.update({"web": {"type": "none"}}, "test")
@@ -55,6 +56,7 @@ class TestBaseWebRequests(BaseTest):
         _, answer = self.get("/.web")
         assert answer
         self.get("/.web/", check=404)
+        self.post("/.web", check=405)
 
     def test_custom(self):
         """Custom web plugin."""
@@ -63,6 +65,5 @@ class TestBaseWebRequests(BaseTest):
         self.application = Application(self.configuration)
         _, answer = self.get("/.web")
         assert answer == "custom"
-
-        _, answer = self.post("/.web")
-        assert answer == "custom post"
+        _, answer = self.post("/.web", "body content")
+        assert answer == "echo:body content"