diff --git a/src/api.js b/src/api.js
index 91e771a5d..228a69b9c 100644
--- a/src/api.js
+++ b/src/api.js
@@ -350,17 +350,9 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
       var self = this;
       this.operatorList = operatorList;
 
-      var displayContinuation = function pageDisplayContinuation() {
-        // Always defer call to display() to work around bug in
-        // Firefox error reporting from XHR callbacks.
-        setTimeout(function pageSetTimeout() {
-          self.displayReadyPromise.resolve();
-        });
-      };
-
       this.ensureFonts(fonts,
         function pageStartRenderingFromOperatorListEnsureFonts() {
-          displayContinuation();
+          self.displayReadyPromise.resolve();
         }
       );
     },