From fdcc4ca590d3ec14222c6e61548ea59c52e5c437 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Steffen=20M=C3=A4rcker?= <merkste@web.de>
Date: Wed, 28 Dec 2011 09:10:06 +0100
Subject: [PATCH] Added fallback to fake worker if serialization of typed array
 fails. This happens e.g. in Opera 11.60.

---
 src/core.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/core.js b/src/core.js
index 93cbc72ac..bf221b4b1 100644
--- a/src/core.js
+++ b/src/core.js
@@ -605,7 +605,13 @@ var PDFDoc = (function PDFDocClosure() {
       }.bind(this));
 
       var testObj = new Uint8Array(1);
-      messageHandler.send('test', testObj);
+      // Some versions of Opera throw a DATA_CLONE_ERR on serializing the typed array.
+      // If such an error occurs, we fallback to a faked worker.
+      try {
+        messageHandler.send('test', testObj);
+      } catch (e) {
+        this.setupFakeWorker();
+      }
     } else {
       this.setupFakeWorker();
     }