Fix, prevent options handler to be added when cors is not enabled

Author: nrako

lib/serve.js

@@ -51,13 +51,10 @@ module.exports = {
         }
         const path = endpoint.replace(/\{(.+?)\}/g, ':$1');
         let handler = this._handlerBase(funcConf, httpEvent);
-        let optionsHandler = this._optionsHandler;
         if (httpEvent.cors) {
           handler = this._handlerAddCors(handler);
-          optionsHandler = this._handlerAddCors(optionsHandler);
-        }
-        if (method !== 'any') {
-          app.options(path, optionsHandler);
+          let optionsHandler = this._handlerAddCors(this._optionsHandler);
+          if (method !== 'any') app.options(path, optionsHandler);
         }
         app[method === 'any' ? 'all' : method](
           path,

tests/serve.test.js

@@ -339,15 +339,11 @@ describe('serve', () => {
       expect(module.serverless.cli.consoleLog).to.have.been.calledWith(
         '  POST - http://localhost:8000/test/func2path/{testParam}'
       );
-      expect(app.options).to.have.callCount(2);
+      expect(app.options).to.have.callCount(1);
       expect(app.options.firstCall).to.have.been.calledWith(
         '/test/func1path',
         testHandlerCors
       );
-      expect(app.options.secondCall).to.have.been.calledWith(
-        '/test/func2path/:testParam',
-        testHandlerOptions
-      );
     });
 
     it('should create express handler for all methods for functions with "any" method', () => {