[FSSDK-11483] content-length header removal from browser (#1047)

Author: junaed-optimizely

lib/event_processor/event_dispatcher/default_dispatcher.spec.ts

@@ -69,8 +69,7 @@ describe('DefaultEventDispatcher', () => {
     expect(requestHnadler.makeRequest).toHaveBeenCalledWith(
       eventObj.url,
       {
-        'content-type': 'application/json',
-        'content-length': JSON.stringify(eventObj.params).length.toString(),
+        'content-type': 'application/json'
       },
       'POST',
       JSON.stringify(eventObj.params)

lib/event_processor/event_dispatcher/default_dispatcher.ts

@@ -37,7 +37,6 @@ export class DefaultEventDispatcher implements EventDispatcher {
 
     const headers = {
       'content-type': 'application/json',
-      'content-length': dataString.length.toString(),
     };
 
     const abortableRequest = this.requestHandler.makeRequest(eventObj.url, headers, 'POST', dataString);

lib/utils/http_request_handler/request_handler.node.ts

@@ -59,6 +59,7 @@ export class NodeRequestHandler implements RequestHandler {
       headers: {
         ...headers,
         'accept-encoding': 'gzip,deflate',
+        'content-length': String(data?.length || 0)
       },
       timeout: this.timeout,
     });