I think I fixed it

src/app/authorisation.service.ts

@@ -314,7 +314,7 @@ public getKeys(id?: Identity) {
    sessionStorage.setItem('authservice', JSON.stringify([authservice,nonce]));
    console.log('stored the authservice in sessionStorage');
    console.log(sessionStorage.getItem('authservice'));
-   sessionStorage.setItem('path', this.location.path());
+   sessionStorage.setItem('path', '/launch');
    if (authservice.scope == null) {
      window.location.assign(authservice.authorise+"?response_type=token&redirect_uri="+redirect_uri+"&state="+nonce+"&client_id="+authservice.client_id);
    } else {