Fix page error handling.

diff --git a/src/api.js b/src/api.js
index 05e8a952fac2c31f200271442d42e6839f3386db..f1baefade935bcf70e76127f7a053629324f65f9 100644 (file)
--- a/src/api.js
+++ b/src/api.js
@@ -385,7 +385,7 @@ var WorkerTransport = (function WorkerTransportClosure() {
       }, this);
 
       messageHandler.on('PageError', function transportError(data) {
-        var page = this.pageCache[data.pageNum];
+        var page = this.pageCache[data.pageNum - 1];
         if (page.displayReadyPromise)
           page.displayReadyPromise.reject(data.error);
         else