diff --git a/lib/components/Redoc/redoc.ts b/lib/components/Redoc/redoc.ts
index dc3907bc..d6840ff0 100644
--- a/lib/components/Redoc/redoc.ts
+++ b/lib/components/Redoc/redoc.ts
@@ -17,8 +17,9 @@ import { OptionsService, RedocEventsService } from '../../services/index';
 })
 export class Redoc extends BaseComponent implements AfterViewInit {
   static appRef: ComponentRef<any>;
+  static _preOptions: any;
 
-  options: any;
+  public options: any;
 
   private element: any;
 
@@ -51,6 +52,8 @@ export class Redoc extends BaseComponent implements AfterViewInit {
   constructor(specMgr: SpecManager, optionsMgr:OptionsService, elementRef:ElementRef,
     public events:RedocEventsService) {
     super(specMgr);
+    // merge options passed before init
+    optionsMgr.options = Redoc._preOptions;
     this.element = elementRef.nativeElement;
     //parse options (top level component doesn't support inputs)
     optionsMgr.parseOptions( this.element );
diff --git a/lib/index.ts b/lib/index.ts
index dd970565..1ba596e9 100644
--- a/lib/index.ts
+++ b/lib/index.ts
@@ -20,9 +20,9 @@ export function init(specUrl:string, options?) {
   if (moduleRef) {
     destroy();
   }
-  //
-  // optionsService.options = options;
-  // optionsService.options.specUrl = optionsService.options.specUrl || specUrl;
+
+  Redoc._preOptions = options;
+  options.specUrl = options.specUrl || specUrl;
 
   Redoc.showLoadingAnimation();
   return SpecManager.instance().load(specUrl)