Implement websocket server

src/http/kernel/module/ExecuteResolvedRoutePreflightHTTPModule.ts

@@ -5,6 +5,7 @@ import {ActivatedRoute} from '../../routing/ActivatedRoute'
 import {ResponseObject} from '../../routing/Route'
 import {AbstractResolvedRouteHandlerHTTPModule} from './AbstractResolvedRouteHandlerHTTPModule'
 import {collect, isLeft, unleft, unright, withErrorContext} from '../../../util'
+import {MountWebSocketRouteHTTPModule} from './MountWebSocketRouteHTTPModule'
 
 /**
  * HTTP Kernel module that executes the preflight handlers for the route.
@@ -13,7 +14,9 @@ import {collect, isLeft, unleft, unright, withErrorContext} from '../../../util'
  */
 export class ExecuteResolvedRoutePreflightHTTPModule extends AbstractResolvedRouteHandlerHTTPModule {
     public static register(kernel: HTTPKernel): void {
-        kernel.register(this).after(MountActivatedRouteHTTPModule)
+        const reg = kernel.register(this)
+        reg.after(MountWebSocketRouteHTTPModule)
+        reg.after(MountActivatedRouteHTTPModule)
     }
 
     public async apply(request: Request): Promise<Request> {