Allow should be a string, not a list.

dfee · web-flow · commit d695fe10d120 · 2017-09-22T23:37:13.000-07:00
diff --git a/graphql_server/__init__.py b/graphql_server/__init__.py
@@ -182,7 +182,7 @@ def execute_graphql_request(schema, params, allow_only_query=False, **kwargs):
                 405,
                 'Can only perform a {} operation from a POST request.'.format(operation_ast.operation),
                 headers={
-                    'Allow': ['POST'],
+                    'Allow': 'POST',
                 }
             )
 

Original file line number	Diff line number	Diff line change
`@@ -182,7 +182,7 @@ def execute_graphql_request(schema, params, allow_only_query=False, **kwargs):`
`182`	`182`	`405,`
`183`	`183`	`'Can only perform a {} operation from a POST request.'.format(operation_ast.operation),`
`184`	`184`	`headers={`
`185`		`- 'Allow': ['POST'],`
	`185`	`+ 'Allow': 'POST',`
`186`	`186`	`}`
`187`	`187`	`)`
`188`	`188`