Add capability to ignore empty valued rpc http headers (worker v2.x) (#304)

Author: mhoeger

src/WorkerChannel.ts

@@ -115,7 +115,8 @@ export class WorkerChannel implements IWorkerChannel {
 
     let workerCapabilities = {
       RpcHttpTriggerMetadataRemoved: "true",
-      RpcHttpBodyOnly: "true"
+      RpcHttpBodyOnly: "true",
+      IgnoreEmptyValuedRpcHttpHeaders: "true"
     };
 
     if (!this._v1WorkerBehavior) {

test/WorkerChannelTests.ts

@@ -107,7 +107,8 @@ describe('WorkerChannel', () => {
       workerInitResponse: {
         capabilities: { 
               'RpcHttpBodyOnly': 'true',
-              'RpcHttpTriggerMetadataRemoved': 'true'
+              'RpcHttpTriggerMetadataRemoved': 'true',
+              'IgnoreEmptyValuedRpcHttpHeaders': 'true'
         },
         result: {
           status: rpc.StatusResult.Status.Success