OK-511 call logout service fix
diff --git a/src/app/services/authentication.service.ts b/src/app/services/authentication.service.ts
index d29a784..9ab8024 100644
--- a/src/app/services/authentication.service.ts
+++ b/src/app/services/authentication.service.ts
@@ -24,7 +24,7 @@
     public logout(): Observable<any> {
         const headers = new Headers();
         this.createCommonHeaders(headers, this._sessionContext);
-        return this._http.post(super.getBaseUrl() + '/logout', '', { headers: headers })
+        return this._http.get(super.getBaseUrl() + '/logout', { headers: headers })
             .map(res => {
                 super.extractSessionId(res.headers, this._sessionContext);
                 return super.extractData(res, this._sessionContext);