diff --git a/www/common/inner/cache.js b/www/common/inner/cache.js
index 7db9635b4..be5b781c2 100644
--- a/www/common/inner/cache.js
+++ b/www/common/inner/cache.js
@@ -8,19 +8,17 @@ define([
                 var e = err || (data && data.error);
                 if (e) { return void cb(e); }
                 if (!data || typeof(data) !== "object") { return void cb('EINVAL'); }
-                var u8 = Uint8Array.from(data);
-                cb(null, u8);
-            });
+                cb(null, data);
+            }, { raw: true });
         };
         var setBlobCache = function (id, u8, cb) {
-            var array = [].slice.call(u8);
             sframeChan.query('Q_SET_BLOB_CACHE', {
                 id: id,
-                u8: array
+                u8: u8
             }, function (err, data) {
                 var e = err || (data && data.error) || undefined;
                 cb(e);
-            });
+            }, { raw: true });
         };
 
 
diff --git a/www/common/media-tag.js b/www/common/media-tag.js
index e391a2530..c855df328 100644
--- a/www/common/media-tag.js
+++ b/www/common/media-tag.js
@@ -591,7 +591,7 @@ var factory = function () {
 
         var getCache = function () {
             var c = cache[uid];
-            if (!c || !c.promise || !c.mt) { console.error(uid);return; }
+            if (!c || !c.promise || !c.mt) { return; }
             return c;
         };
 
diff --git a/www/common/outer/worker-channel.js b/www/common/outer/worker-channel.js
index 545ce435b..a359d8836 100644
--- a/www/common/outer/worker-channel.js
+++ b/www/common/outer/worker-channel.js
@@ -65,11 +65,13 @@ define([
                 cb(undefined, data.content, msg);
             };
             evReady.reg(function () {
-                postMsg(JSON.stringify({
+                var toSend = {
                     txid: txid,
                     content: content,
-                    q: q
-                }));
+                    q: q,
+                    raw: opts.raw
+                };
+                postMsg(opts.raw ? toSend : JSON.stringify(toSend));
             });
         };
 
@@ -84,12 +86,13 @@ define([
         // If the type is a query, your handler will be invoked with a reply function that takes
         // one argument (the content to reply with).
         chan.on = function (queryType, handler, quiet) {
-            var h = function (data, msg) {
+            var h = function (data, msg, raw) {
                 handler(data.content, function (replyContent) {
-                    postMsg(JSON.stringify({
+                    var toSend = {
                         txid: data.txid,
                         content: replyContent
-                    }));
+                    };
+                    postMsg(raw ? toSend : JSON.stringify(toSend));
                 }, msg);
             };
             (handlers[queryType] = handlers[queryType] || []).push(h);
@@ -150,7 +153,7 @@ define([
         onMsg.reg(function (msg) {
             if (!chanLoaded) { return; }
             if (!msg.data || msg.data === '_READY') { return; }
-            var data = JSON.parse(msg.data);
+            var data = typeof(msg.data) === "object" ? msg.data : JSON.parse(msg.data);
             if (typeof(data.ack) !== "undefined") {
                 if (acks[data.txid]) { acks[data.txid](!data.ack); }
             } else if (typeof(data.q) === 'string') {
@@ -163,7 +166,7 @@ define([
                         }));
                     }
                     handlers[data.q].forEach(function (f) {
-                        f(data || JSON.parse(msg.data), msg);
+                        f(data || JSON.parse(msg.data), msg, data && data.raw);
                         data = undefined;
                     });
                 } else {
diff --git a/www/common/sframe-common-outer.js b/www/common/sframe-common-outer.js
index 49d52c37b..e43c169ed 100644
--- a/www/common/sframe-common-outer.js
+++ b/www/common/sframe-common-outer.js
@@ -683,15 +683,12 @@ define([
                 sframeChan.on('Q_GET_BLOB_CACHE', function (data, cb) {
                     Utils.Cache.getBlobCache(data.id, function (err, obj) {
                         if (err) { return void cb({error: err}); }
-                        var arr = [].slice.call(obj);
-                        cb(arr);
+                        cb(obj);
                     });
                 });
                 sframeChan.on('Q_SET_BLOB_CACHE', function (data, cb) {
                     if (!data || !data.u8 || typeof(data.u8) !== "object") { return void cb({error: 'EINVAL'}); }
-                    var arr = data.u8;
-                    var u8 = Uint8Array.from(arr);
-                    Utils.Cache.setBlobCache(data.id, u8, function (err) {
+                    Utils.Cache.setBlobCache(data.id, data.u8, function (err) {
                         if (err) { return void cb({error: err}); }
                         cb();
                     });
diff --git a/www/secureiframe/main.js b/www/secureiframe/main.js
index 1bf5e3e7b..62175c5a0 100644
--- a/www/secureiframe/main.js
+++ b/www/secureiframe/main.js
@@ -33,7 +33,7 @@ define([
             // loading screen setup.
             var done = waitFor();
             var onMsg = function (msg) {
-                var data = JSON.parse(msg.data);
+                var data = typeof(msg.data) === "object" ? msg.data : JSON.parse(msg.data);
                 if (data.q !== 'READY') { return; }
                 window.removeEventListener('message', onMsg);
                 var _done = done;