diff --git a/postgraphile/spec/server/runtime.spec.ts b/postgraphile/spec/server/runtime.spec.ts
index 3e62a9f4..85b55b61 100644
--- a/postgraphile/spec/server/runtime.spec.ts
+++ b/postgraphile/spec/server/runtime.spec.ts
@@ -28,6 +28,7 @@ describe('bootServer', () => {
       options: { 
         pluginHook: jasmine.createSpy('pluginHook'),
         watchPg: true,
+        enableCors: true,
         simpleSubscriptions: true,
         graphiql: true,
         webSocketMiddlewares: [] },
diff --git a/postgraphile/src/adapters/postgraphile.ts b/postgraphile/src/adapters/postgraphile.ts
index c7013359..924fe3d5 100644
--- a/postgraphile/src/adapters/postgraphile.ts
+++ b/postgraphile/src/adapters/postgraphile.ts
@@ -12,6 +12,7 @@ export interface PostgraphileOptions {
   pluginHook: PluginHookFn,
   simpleSubscriptions: boolean;
   watchPg: boolean;
+  enableCors: boolean;
   graphiql: boolean;
   // NOTE (jchristie@8thlight.com) Shape of the middlewares is not
   // currently important to this application, but if a need arises,
diff --git a/postgraphile/src/server/config.ts b/postgraphile/src/server/config.ts
index c5acf974..5c4dc310 100644
--- a/postgraphile/src/server/config.ts
+++ b/postgraphile/src/server/config.ts
@@ -28,6 +28,7 @@ export function buildServerConfig(
     pluginHook: pluginHook,
     simpleSubscriptions: true,
     watchPg: true,
+    enableCors: true,
     graphiql: true,
     webSocketMiddlewares: [
       expressSessionHandler,