diff --git a/js/ContentObject.js b/js/ContentObject.js
index 71aed69..ca6a819 100644
--- a/js/ContentObject.js
+++ b/js/ContentObject.js
@@ -141,10 +141,7 @@
 			this.signedInfo.from_ccnb(decoder);
 		}
 
-        if (decoder.peekTypeAndVal() == null)
-            this.content = null;
-        else
-            this.content = decoder.readBinaryElement(CCNProtocolDTags.Content);
+        this.content = decoder.readBinaryElement(CCNProtocolDTags.Content, null, true);
 		
 		this.endSIG = decoder.offset;
 		
diff --git a/js/encoding/BinaryXMLDecoder.js b/js/encoding/BinaryXMLDecoder.js
index 4556c57..882a7fc 100644
--- a/js/encoding/BinaryXMLDecoder.js
+++ b/js/encoding/BinaryXMLDecoder.js
@@ -344,9 +344,11 @@
 		//long 
 		startTag,
 		//TreeMap<String, String> 
-		attributes){
+		attributes,
+		//boolean
+		allowNull){
 	this.readStartElement(startTag, attributes);
-	return this.readBlob();	
+	return this.readBlob(allowNull);	
 };
 	
 	
@@ -378,8 +380,17 @@
 	};
 	
 
-// Read a blob as well as the end element. Returns a Uint8Array.
-BinaryXMLDecoder.prototype.readBlob = function() {
+/*
+ * Read a blob as well as the end element. Returns a Uint8Array (or null for missing blob).
+ * If the blob is missing and allowNull is false (default), throw an exception.  Otherwise,
+ *   just read the end element and return null.
+ */
+BinaryXMLDecoder.prototype.readBlob = function(allowNull) {
+    if (this.istream[this.offset] == XML_CLOSE && allowNull) {
+        this.readEndElement();
+        return null;
+    }
+    
 	var blob = this.decodeBlob();	
 	this.readEndElement();
 	return blob;
diff --git a/js/ndnProtocol.xpi b/js/ndnProtocol.xpi
index 629de78..e14c06a 100644
--- a/js/ndnProtocol.xpi
+++ b/js/ndnProtocol.xpi
Binary files differ
diff --git a/js/ndnProtocol/modules/ndn-js.jsm b/js/ndnProtocol/modules/ndn-js.jsm
index 08ee26a..5d2a92d 100644
--- a/js/ndnProtocol/modules/ndn-js.jsm
+++ b/js/ndnProtocol/modules/ndn-js.jsm
@@ -64,8 +64,8 @@
 ContentObject.prototype.sign=function(){var a=this.encodeObject(this.name),b=this.encodeObject(this.signedInfo),c=this.encodeContent(),d=new ArrayBuffer(a.length+b.length+c.length),d=new Uint8Array(d);d.set(a,0);d.set(b,a.length);d.set(c,a.length+b.length);4<LOG&&console.log("Signature Data is (binary) "+d);4<LOG&&console.log("Signature Data is (RawString)");4<LOG&&console.log(DataUtils.toString(d));a=new RSAKey;a.readPrivateKeyFromPEMString(globalKeyManager.privateKey);a=a.signByteArrayWithSHA256(d);
 4<LOG&&console.log("SIGNATURE SAVED IS");4<LOG&&console.log(a);4<LOG&&console.log(DataUtils.toNumbers(a.trim()));this.signature.signature=DataUtils.toNumbers(a.trim())};ContentObject.prototype.encodeObject=function(a){var b=new BinaryXMLEncoder;a.to_ccnb(b);return b.getReducedOstream()};ContentObject.prototype.encodeContent=function(){var a=new BinaryXMLEncoder;a.writeElement(CCNProtocolDTags.Content,this.content);return a.getReducedOstream()};
 ContentObject.prototype.saveRawData=function(a){this.rawSignatureData=a.subarray(this.startSIG,this.endSIG)};
-ContentObject.prototype.from_ccnb=function(a){a.readStartElement(this.getElementLabel());a.peekStartElement(CCNProtocolDTags.Signature)&&(this.signature=new Signature,this.signature.from_ccnb(a));this.startSIG=a.offset;this.name=new Name;this.name.from_ccnb(a);a.peekStartElement(CCNProtocolDTags.SignedInfo)&&(this.signedInfo=new SignedInfo,this.signedInfo.from_ccnb(a));this.content=null==a.peekTypeAndVal()?null:a.readBinaryElement(CCNProtocolDTags.Content);this.endSIG=a.offset;a.readEndElement();
-this.saveRawData(a.istream)};ContentObject.prototype.to_ccnb=function(a){a.writeStartElement(this.getElementLabel());null!=this.signature&&this.signature.to_ccnb(a);this.startSIG=a.offset;null!=this.name&&this.name.to_ccnb(a);null!=this.signedInfo&&this.signedInfo.to_ccnb(a);a.writeElement(CCNProtocolDTags.Content,this.content);this.endSIG=a.offset;a.writeEndElement();this.saveRawData(a.ostream)};ContentObject.prototype.getElementLabel=function(){return CCNProtocolDTags.ContentObject};
+ContentObject.prototype.from_ccnb=function(a){a.readStartElement(this.getElementLabel());a.peekStartElement(CCNProtocolDTags.Signature)&&(this.signature=new Signature,this.signature.from_ccnb(a));this.startSIG=a.offset;this.name=new Name;this.name.from_ccnb(a);a.peekStartElement(CCNProtocolDTags.SignedInfo)&&(this.signedInfo=new SignedInfo,this.signedInfo.from_ccnb(a));this.content=a.readBinaryElement(CCNProtocolDTags.Content,null,!0);this.endSIG=a.offset;a.readEndElement();this.saveRawData(a.istream)};
+ContentObject.prototype.to_ccnb=function(a){a.writeStartElement(this.getElementLabel());null!=this.signature&&this.signature.to_ccnb(a);this.startSIG=a.offset;null!=this.name&&this.name.to_ccnb(a);null!=this.signedInfo&&this.signedInfo.to_ccnb(a);a.writeElement(CCNProtocolDTags.Content,this.content);this.endSIG=a.offset;a.writeEndElement();this.saveRawData(a.ostream)};ContentObject.prototype.getElementLabel=function(){return CCNProtocolDTags.ContentObject};
 var Signature=function(a,b,c){this.Witness=a;this.signature=b;this.digestAlgorithm=c};
 Signature.prototype.from_ccnb=function(a){a.readStartElement(this.getElementLabel());4<LOG&&console.log("STARTED DECODING SIGNATURE");a.peekStartElement(CCNProtocolDTags.DigestAlgorithm)&&(4<LOG&&console.log("DIGIEST ALGORITHM FOUND"),this.digestAlgorithm=a.readUTF8Element(CCNProtocolDTags.DigestAlgorithm));a.peekStartElement(CCNProtocolDTags.Witness)&&(4<LOG&&console.log("WITNESS FOUND"),this.Witness=a.readBinaryElement(CCNProtocolDTags.Witness));4<LOG&&console.log("SIGNATURE FOUND");this.signature=
 a.readBinaryElement(CCNProtocolDTags.SignatureBits);a.readEndElement()};
@@ -145,9 +145,10 @@
 g));}};BinaryXMLDecoder.prototype.peekStartElementAsString=function(){var a=null,b=this.offset;try{var c=this.decodeTypeAndVal();if(null!=c)if(c.type()==XML_TAG){var d;d="string"==typeof c.val()?parseInt(c.val())+1:c.val()+1;a=this.decodeUString(d)}else c.type()==XML_DTAG&&(a=tagToString(c.val()))}catch(e){}finally{try{this.offset=b}catch(f){throw Log.logStackTrace(Log.FAC_ENCODING,Level.WARNING,f),new ContentDecodingException(Error("Cannot reset stream! "+f.getMessage(),f));}}return a};
 BinaryXMLDecoder.prototype.peekStartElement=function(a){if("string"==typeof a){var b=this.peekStartElementAsString();return null!=b&&b==a?!0:!1}if("number"==typeof a)return b=this.peekStartElementAsLong(),null!=b&&b==a?!0:!1;throw new ContentDecodingException(Error("SHOULD BE STRING OR NUMBER"));};
 BinaryXMLDecoder.prototype.peekStartElementAsLong=function(){var a=null,b=this.offset;try{var c=this.decodeTypeAndVal();if(null!=c)if(c.type()==XML_TAG){if(c.val()+1>DEBUG_MAX_LEN)throw new ContentDecodingException(Error("Decoding error: length "+c.val()+1+" longer than expected maximum length!"));var d;d="string"==typeof c.val()?parseInt(c.val())+1:c.val()+1;var e=this.decodeUString(d),a=stringToTag(e)}else c.type()==XML_DTAG&&(a=c.val())}catch(f){}finally{try{this.offset=b}catch(g){throw Log.logStackTrace(Log.FAC_ENCODING,
-Level.WARNING,g),Error("Cannot reset stream! "+g.getMessage(),g);}}return a};BinaryXMLDecoder.prototype.readBinaryElement=function(a,b){var c=null;this.readStartElement(a,b);return c=this.readBlob()};
+Level.WARNING,g),Error("Cannot reset stream! "+g.getMessage(),g);}}return a};BinaryXMLDecoder.prototype.readBinaryElement=function(a,b,c){this.readStartElement(a,b);return this.readBlob(c)};
 BinaryXMLDecoder.prototype.readEndElement=function(){4<LOG&&console.log("this.offset is "+this.offset);var a=this.istream[this.offset];this.offset++;4<LOG&&console.log("XML_CLOSE IS "+XML_CLOSE);4<LOG&&console.log("next is "+a);if(a!=XML_CLOSE)throw console.log("Expected end element, got: "+a),new ContentDecodingException(Error("Expected end element, got: "+a));};BinaryXMLDecoder.prototype.readUString=function(){var a=this.decodeUString();this.readEndElement();return a};
-BinaryXMLDecoder.prototype.readBlob=function(){var a=this.decodeBlob();this.readEndElement();return a};BinaryXMLDecoder.prototype.readDateTime=function(a){var a=this.readBinaryElement(a),a=DataUtils.toHex(a),a=parseInt(a,16),b=1E3*(a/4096);4<LOG&&console.log("DECODED DATE WITH VALUE");4<LOG&&console.log(b);b=new CCNTime(b);if(null==b)throw new ContentDecodingException(Error("Cannot parse timestamp: "+DataUtils.printHexBytes(a)));return b};
+BinaryXMLDecoder.prototype.readBlob=function(a){if(this.istream[this.offset]==XML_CLOSE&&a)return this.readEndElement(),null;a=this.decodeBlob();this.readEndElement();return a};
+BinaryXMLDecoder.prototype.readDateTime=function(a){var a=this.readBinaryElement(a),a=DataUtils.toHex(a),a=parseInt(a,16),b=1E3*(a/4096);4<LOG&&console.log("DECODED DATE WITH VALUE");4<LOG&&console.log(b);b=new CCNTime(b);if(null==b)throw new ContentDecodingException(Error("Cannot parse timestamp: "+DataUtils.printHexBytes(a)));return b};
 BinaryXMLDecoder.prototype.decodeTypeAndVal=function(){var a=-1,b=0,c=!0;do{var d=this.istream[this.offset];if(0>d||0==d&&0==b)return null;(c=0==(d&XML_TT_NO_MORE))?(b<<=XML_REG_VAL_BITS,b|=d&XML_REG_VAL_MASK):(a=d&XML_TT_MASK,b<<=XML_TT_VAL_BITS,b|=d>>>XML_TT_BITS&XML_TT_VAL_MASK);this.offset++}while(c);4<LOG&&console.log("TYPE is "+a+" VAL is "+b);return new TypeAndVal(a,b)};
 BinaryXMLDecoder.prototype.peekTypeAndVal=function(){var a=null,b=this.offset;try{a=this.decodeTypeAndVal()}finally{this.offset=b}return a};BinaryXMLDecoder.prototype.decodeBlob=function(a){if(null==a)return a=this.decodeTypeAndVal(),a="string"==typeof a.val()?parseInt(a.val()):a.val(),this.decodeBlob(a);var b=this.istream.subarray(this.offset,this.offset+a);this.offset+=a;return b};
 BinaryXMLDecoder.prototype.decodeUString=function(a){if(null==a){var a=this.offset,b=this.decodeTypeAndVal();4<LOG&&console.log("TV is "+b);4<LOG&&console.log(b);4<LOG&&console.log("Type of TV is "+typeof b);return null==b||XML_UDATA!=b.type()?(this.offset=a,""):this.decodeUString(b.val())}a=this.decodeBlob(a);return DataUtils.toString(a)};TypeAndVal=function(a,b){this.t=a;this.v=b};TypeAndVal.prototype.type=function(){return this.t};TypeAndVal.prototype.val=function(){return this.v};
@@ -297,7 +298,7 @@
 function getEntryForRegisteredPrefix(a){for(var b=0;b<NDN.CSTable.length;b++)if(null!=NDN.CSTable[b].name.match(a))return NDN.CSTable[b];return null}NDN.makeShuffledGetHostAndPort=function(a,b){a=a.slice(0,a.length);DataUtils.shuffle(a);return function(){return 0==a.length?null:{host:a.splice(0,1)[0],port:b}}};
 NDN.prototype.expressInterest=function(a,b,c){var d=new Interest(a);null!=c?(d.minSuffixComponents=c.minSuffixComponents,d.maxSuffixComponents=c.maxSuffixComponents,d.publisherPublicKeyDigest=c.publisherPublicKeyDigest,d.exclude=c.exclude,d.childSelector=c.childSelector,d.answerOriginKind=c.answerOriginKind,d.scope=c.scope,d.interestLifetime=c.interestLifetime):d.interestLifetime=4E3;if(null==this.host||null==this.port)if(null==this.getHostAndPort)console.log("ERROR: host OR port NOT SET");else{var e=
 this;this.connectAndExecute(function(){e.reconnectAndExpressInterest(d,b)})}else this.reconnectAndExpressInterest(d,b)};NDN.prototype.reconnectAndExpressInterest=function(a,b){if(this.transport.connectedHost!=this.host||this.transport.connectedPort!=this.port){var c=this;this.transport.connect(c,function(){c.expressInterestHelper(a,b)})}else this.expressInterestHelper(a,b)};
-NDN.prototype.expressInterestHelper=function(a,b){var c=encodeToBinaryInterest(a),d=this;if(null!=b){var e=new PITEntry(a,b);NDN.PITTable.push(e);b.pitEntry=e;var f=a.interestLifetime||4E3,g=function(){3<LOG&&console.log("Interest time out: "+a.name.to_uri());var h=NDN.PITTable.indexOf(e);0<=h&&NDN.PITTable.splice(h,1);b.upcall(Closure.UPCALL_INTEREST_TIMED_OUT,new UpcallInfo(d,a,0,null))==Closure.RESULT_REEXPRESS&&(3<LOG&&console.log("Re-express interest: "+a.name.to_uri()),e.timerID=setTimeout(g,
+NDN.prototype.expressInterestHelper=function(a,b){var c=encodeToBinaryInterest(a),d=this;if(null!=b){var e=new PITEntry(a,b);NDN.PITTable.push(e);b.pitEntry=e;var f=a.interestLifetime||4E3,g=function(){1<LOG&&console.log("Interest time out: "+a.name.to_uri());var h=NDN.PITTable.indexOf(e);0<=h&&NDN.PITTable.splice(h,1);b.upcall(Closure.UPCALL_INTEREST_TIMED_OUT,new UpcallInfo(d,a,0,null))==Closure.RESULT_REEXPRESS&&(1<LOG&&console.log("Re-express interest: "+a.name.to_uri()),e.timerID=setTimeout(g,
 f),NDN.PITTable.push(e),d.transport.send(c))};e.timerID=setTimeout(g,f)}this.transport.send(c)};
 NDN.prototype.registerPrefix=function(a,b,c){var d=this,e=function(){if(null==d.ccndid){var e=new Interest(NDN.ccndIdFetcher);e.interestLifetime=4E3;3<LOG&&console.log("Expressing interest for ccndid from ccnd.");d.reconnectAndExpressInterest(e,new NDN.FetchCcndidClosure(d,a,b,c))}else d.registerPrefixHelper(a,b,c)};null==this.host||null==this.port?null==this.getHostAndPort?console.log("ERROR: host OR port NOT SET"):this.connectAndExecute(e):e()};
 NDN.FetchCcndidClosure=function(a,b,c,d){Closure.call(this);this.ndn=a;this.name=b;this.callerClosure=c;this.flag=d};
@@ -311,9 +312,9 @@
 if(g.type==KeyLocatorType.KEYNAME)if(3<LOG&&console.log("KeyLocator contains KEYNAME"),g.keyName.contentName.match(a.name))3<LOG&&console.log("Content is key itself"),d=decodeSubjectPublicKeyInfo(a.content),c=d.verifyByteArray(a.rawSignatureData,f,c),c=!0==c?Closure.UPCALL_CONTENT:Closure.UPCALL_CONTENT_BAD,b.upcall(c,new UpcallInfo(this,null,0,a));else{var h=NDN.getKeyByName(g.keyName);h?(3<LOG&&console.log("Local key cache hit"),d=h.rsaKey,c=d.verifyByteArray(a.rawSignatureData,f,c),c=!0==c?Closure.UPCALL_CONTENT:
 Closure.UPCALL_CONTENT_BAD,b.upcall(c,new UpcallInfo(this,null,0,a))):(3<LOG&&console.log("Fetch key according to keylocator"),a=new d(a,b,g.keyName,c,f),this.expressInterest(g.keyName.contentName.getPrefix(4),a))}else g.type==KeyLocatorType.KEY?(3<LOG&&console.log("Keylocator contains KEY"),d=decodeSubjectPublicKeyInfo(a.signedInfo.locator.publicKey),c=d.verifyByteArray(a.rawSignatureData,f,c),c=!0==c?Closure.UPCALL_CONTENT:Closure.UPCALL_CONTENT_BAD,b.upcall(Closure.UPCALL_CONTENT,new UpcallInfo(this,
 null,0,a))):(a=g.certificate,console.log("KeyLocator contains CERT"),console.log(a))}}}}else console.log("Incoming packet is not Interest or ContentObject. Discard now.")};
-NDN.prototype.connectAndExecute=function(a){var b=this.getHostAndPort();if(null==b)console.log("ERROR: No more hosts from getHostAndPort"),this.host=null;else if(b.host==this.host&&b.port==this.port)console.log("ERROR: The host returned by getHostAndPort is not alive: "+this.host+":"+this.port);else{this.host=b.host;this.port=b.port;3<LOG&&console.log("Connect: trying host from getHostAndPort: "+this.host);b=new Interest(new Name("/"));b.interestLifetime=4E3;var c=this,d=setTimeout(function(){3<LOG&&
-console.log("Connect: timeout waiting for host "+c.host);c.connectAndExecute(a)},3E3);this.reconnectAndExpressInterest(b,new NDN.ConnectClosure(this,a,d))}};NDN.ConnectClosure=function(a,b,c){Closure.call(this);this.ndn=a;this.onConnected=b;this.timerID=c};NDN.ConnectClosure.prototype.upcall=function(a){if(!(a==Closure.UPCALL_CONTENT||a==Closure.UPCALL_CONTENT_UNVERIFIED))return Closure.RESULT_ERR;clearTimeout(this.timerID);this.ndn.readyStatus=NDN.OPENED;this.ndn.onopen();this.onConnected();return Closure.RESULT_OK};
-var BinaryXmlElementReader=function(a){this.elementListener=a;this.dataParts=[];this.structureDecoder=new BinaryXMLStructureDecoder};
+NDN.prototype.connectAndExecute=function(a){var b=this.getHostAndPort();if(null==b)console.log("ERROR: No more hosts from getHostAndPort"),this.host=null;else if(b.host==this.host&&b.port==this.port)console.log("ERROR: The host returned by getHostAndPort is not alive: "+this.host+":"+this.port);else{this.host=b.host;this.port=b.port;0<LOG&&console.log("connectAndExecute: trying host from getHostAndPort: "+this.host);b=new Interest(new Name("/"));b.interestLifetime=4E3;var c=this,d=setTimeout(function(){0<
+LOG&&console.log("connectAndExecute: timeout waiting for host "+c.host);c.connectAndExecute(a)},3E3);this.reconnectAndExpressInterest(b,new NDN.ConnectClosure(this,a,d))}};NDN.ConnectClosure=function(a,b,c){Closure.call(this);this.ndn=a;this.onConnected=b;this.timerID=c};
+NDN.ConnectClosure.prototype.upcall=function(a){if(!(a==Closure.UPCALL_CONTENT||a==Closure.UPCALL_CONTENT_UNVERIFIED))return Closure.RESULT_ERR;clearTimeout(this.timerID);this.ndn.readyStatus=NDN.OPENED;this.ndn.onopen();0<LOG&&console.log("connectAndExecute: connected to host "+this.ndn.host);this.onConnected();return Closure.RESULT_OK};var BinaryXmlElementReader=function(a){this.elementListener=a;this.dataParts=[];this.structureDecoder=new BinaryXMLStructureDecoder};
 BinaryXmlElementReader.prototype.onReceivedData=function(a){for(;;)if(this.structureDecoder.seek(0),this.structureDecoder.findElementEnd(a)){this.dataParts.push(a.subarray(0,this.structureDecoder.offset));var b=DataUtils.concatArrays(this.dataParts);this.dataParts=[];try{this.elementListener.onReceivedElement(b)}catch(c){console.log("BinaryXmlElementReader: ignoring exception from onReceivedElement: "+c)}a=a.subarray(this.structureDecoder.offset,a.length);this.structureDecoder=new BinaryXMLStructureDecoder;
 if(0==a.length)break}else{this.dataParts.push(a);3<LOG&&console.log("Incomplete packet received. Length "+a.length+". Wait for more input.");break}};
 /** 
diff --git a/js/tools/build/ndn-js-uncomp.js b/js/tools/build/ndn-js-uncomp.js
index 0abf8d0..51a90d8 100644
--- a/js/tools/build/ndn-js-uncomp.js
+++ b/js/tools/build/ndn-js-uncomp.js
@@ -975,10 +975,7 @@
 			this.signedInfo.from_ccnb(decoder);
 		}
 
-        if (decoder.peekTypeAndVal() == null)
-            this.content = null;
-        else
-            this.content = decoder.readBinaryElement(CCNProtocolDTags.Content);
+        this.content = decoder.readBinaryElement(CCNProtocolDTags.Content, null, true);
 		
 		this.endSIG = decoder.offset;
 		
@@ -3086,19 +3083,16 @@
 	};
 
 
-// returns a byte[]
+// Returns a Uint8Array.
 BinaryXMLDecoder.prototype.readBinaryElement = function(
 		//long 
 		startTag,
 		//TreeMap<String, String> 
-		attributes){
-	//byte [] 
-	var blob = null;
-	
+		attributes,
+		//boolean
+		allowNull){
 	this.readStartElement(startTag, attributes);
-	blob = this.readBlob();	
-
-	return blob;
+	return this.readBlob(allowNull);	
 };
 	
 	
@@ -3130,15 +3124,21 @@
 	};
 	
 
-//returns a uint8array
-BinaryXMLDecoder.prototype.readBlob = function() {
-			//uint8array
-			
-			var blob = this.decodeBlob();	
-			this.readEndElement();
-			return blob;
-
-	};
+/*
+ * Read a blob as well as the end element. Returns a Uint8Array (or null for missing blob).
+ * If the blob is missing and allowNull is false (default), throw an exception.  Otherwise,
+ *   just read the end element and return null.
+ */
+BinaryXMLDecoder.prototype.readBlob = function(allowNull) {
+    if (this.istream[this.offset] == XML_CLOSE && allowNull) {
+        this.readEndElement();
+        return null;
+    }
+    
+	var blob = this.decodeBlob();	
+	this.readEndElement();
+	return blob;
+};
 
 
 //CCNTime
@@ -7772,7 +7772,7 @@
         // Set interest timer.
         var timeoutMilliseconds = (interest.interestLifetime || 4000);
         var timeoutCallback = function() {
-			if (LOG > 3) console.log("Interest time out: " + interest.name.to_uri());
+			if (LOG > 1) console.log("Interest time out: " + interest.name.to_uri());
 				
 			// Remove PIT entry from NDN.PITTable, even if we add it again later to re-express
             //   the interest because we don't want to match it in the mean time.
@@ -7784,7 +7784,7 @@
 			// Raise closure callback
 			if (closure.upcall(Closure.UPCALL_INTEREST_TIMED_OUT, 
                   new UpcallInfo(thisNDN, interest, 0, null)) == Closure.RESULT_REEXPRESS) {
-			    if (LOG > 3) console.log("Re-express interest: " + interest.name.to_uri());
+			    if (LOG > 1) console.log("Re-express interest: " + interest.name.to_uri());
                 pitEntry.timerID = setTimeout(timeoutCallback, timeoutMilliseconds);
                 NDN.PITTable.push(pitEntry);
                 thisNDN.transport.send(binaryInterest);
@@ -8072,7 +8072,7 @@
         
     this.host = hostAndPort.host;
     this.port = hostAndPort.port;   
-    if (LOG>3) console.log("Connect: trying host from getHostAndPort: " + this.host);
+    if (LOG>0) console.log("connectAndExecute: trying host from getHostAndPort: " + this.host);
     
     // Fetch any content.
     var interest = new Interest(new Name("/"));
@@ -8080,7 +8080,7 @@
 
     var thisNDN = this;
 	var timerID = setTimeout(function() {
-        if (LOG>3) console.log("Connect: timeout waiting for host " + thisNDN.host);
+        if (LOG>0) console.log("connectAndExecute: timeout waiting for host " + thisNDN.host);
         // Try again.
         thisNDN.connectAndExecute(onConnected);
 	}, 3000);
@@ -8111,6 +8111,7 @@
 	this.ndn.readyStatus = NDN.OPENED;
 	this.ndn.onopen();
 
+    if (LOG>0) console.log("connectAndExecute: connected to host " + this.ndn.host);
     this.onConnected();
 
     return Closure.RESULT_OK;
diff --git a/js/tools/build/ndn-js.js b/js/tools/build/ndn-js.js
index d0b856a..e5cba68 100644
--- a/js/tools/build/ndn-js.js
+++ b/js/tools/build/ndn-js.js
@@ -28,8 +28,8 @@
 ContentObject.prototype.sign=function(){var a=this.encodeObject(this.name),b=this.encodeObject(this.signedInfo),c=this.encodeContent(),d=new ArrayBuffer(a.length+b.length+c.length),d=new Uint8Array(d);d.set(a,0);d.set(b,a.length);d.set(c,a.length+b.length);4<LOG&&console.log("Signature Data is (binary) "+d);4<LOG&&console.log("Signature Data is (RawString)");4<LOG&&console.log(DataUtils.toString(d));a=new RSAKey;a.readPrivateKeyFromPEMString(globalKeyManager.privateKey);a=a.signByteArrayWithSHA256(d);
 4<LOG&&console.log("SIGNATURE SAVED IS");4<LOG&&console.log(a);4<LOG&&console.log(DataUtils.toNumbers(a.trim()));this.signature.signature=DataUtils.toNumbers(a.trim())};ContentObject.prototype.encodeObject=function(a){var b=new BinaryXMLEncoder;a.to_ccnb(b);return b.getReducedOstream()};ContentObject.prototype.encodeContent=function(){var a=new BinaryXMLEncoder;a.writeElement(CCNProtocolDTags.Content,this.content);return a.getReducedOstream()};
 ContentObject.prototype.saveRawData=function(a){this.rawSignatureData=a.subarray(this.startSIG,this.endSIG)};
-ContentObject.prototype.from_ccnb=function(a){a.readStartElement(this.getElementLabel());a.peekStartElement(CCNProtocolDTags.Signature)&&(this.signature=new Signature,this.signature.from_ccnb(a));this.startSIG=a.offset;this.name=new Name;this.name.from_ccnb(a);a.peekStartElement(CCNProtocolDTags.SignedInfo)&&(this.signedInfo=new SignedInfo,this.signedInfo.from_ccnb(a));this.content=null==a.peekTypeAndVal()?null:a.readBinaryElement(CCNProtocolDTags.Content);this.endSIG=a.offset;a.readEndElement();
-this.saveRawData(a.istream)};ContentObject.prototype.to_ccnb=function(a){a.writeStartElement(this.getElementLabel());null!=this.signature&&this.signature.to_ccnb(a);this.startSIG=a.offset;null!=this.name&&this.name.to_ccnb(a);null!=this.signedInfo&&this.signedInfo.to_ccnb(a);a.writeElement(CCNProtocolDTags.Content,this.content);this.endSIG=a.offset;a.writeEndElement();this.saveRawData(a.ostream)};ContentObject.prototype.getElementLabel=function(){return CCNProtocolDTags.ContentObject};
+ContentObject.prototype.from_ccnb=function(a){a.readStartElement(this.getElementLabel());a.peekStartElement(CCNProtocolDTags.Signature)&&(this.signature=new Signature,this.signature.from_ccnb(a));this.startSIG=a.offset;this.name=new Name;this.name.from_ccnb(a);a.peekStartElement(CCNProtocolDTags.SignedInfo)&&(this.signedInfo=new SignedInfo,this.signedInfo.from_ccnb(a));this.content=a.readBinaryElement(CCNProtocolDTags.Content,null,!0);this.endSIG=a.offset;a.readEndElement();this.saveRawData(a.istream)};
+ContentObject.prototype.to_ccnb=function(a){a.writeStartElement(this.getElementLabel());null!=this.signature&&this.signature.to_ccnb(a);this.startSIG=a.offset;null!=this.name&&this.name.to_ccnb(a);null!=this.signedInfo&&this.signedInfo.to_ccnb(a);a.writeElement(CCNProtocolDTags.Content,this.content);this.endSIG=a.offset;a.writeEndElement();this.saveRawData(a.ostream)};ContentObject.prototype.getElementLabel=function(){return CCNProtocolDTags.ContentObject};
 var Signature=function(a,b,c){this.Witness=a;this.signature=b;this.digestAlgorithm=c};
 Signature.prototype.from_ccnb=function(a){a.readStartElement(this.getElementLabel());4<LOG&&console.log("STARTED DECODING SIGNATURE");a.peekStartElement(CCNProtocolDTags.DigestAlgorithm)&&(4<LOG&&console.log("DIGIEST ALGORITHM FOUND"),this.digestAlgorithm=a.readUTF8Element(CCNProtocolDTags.DigestAlgorithm));a.peekStartElement(CCNProtocolDTags.Witness)&&(4<LOG&&console.log("WITNESS FOUND"),this.Witness=a.readBinaryElement(CCNProtocolDTags.Witness));4<LOG&&console.log("SIGNATURE FOUND");this.signature=
 a.readBinaryElement(CCNProtocolDTags.SignatureBits);a.readEndElement()};
@@ -109,9 +109,10 @@
 g));}};BinaryXMLDecoder.prototype.peekStartElementAsString=function(){var a=null,b=this.offset;try{var c=this.decodeTypeAndVal();if(null!=c)if(c.type()==XML_TAG){var d;d="string"==typeof c.val()?parseInt(c.val())+1:c.val()+1;a=this.decodeUString(d)}else c.type()==XML_DTAG&&(a=tagToString(c.val()))}catch(e){}finally{try{this.offset=b}catch(f){throw Log.logStackTrace(Log.FAC_ENCODING,Level.WARNING,f),new ContentDecodingException(Error("Cannot reset stream! "+f.getMessage(),f));}}return a};
 BinaryXMLDecoder.prototype.peekStartElement=function(a){if("string"==typeof a){var b=this.peekStartElementAsString();return null!=b&&b==a?!0:!1}if("number"==typeof a)return b=this.peekStartElementAsLong(),null!=b&&b==a?!0:!1;throw new ContentDecodingException(Error("SHOULD BE STRING OR NUMBER"));};
 BinaryXMLDecoder.prototype.peekStartElementAsLong=function(){var a=null,b=this.offset;try{var c=this.decodeTypeAndVal();if(null!=c)if(c.type()==XML_TAG){if(c.val()+1>DEBUG_MAX_LEN)throw new ContentDecodingException(Error("Decoding error: length "+c.val()+1+" longer than expected maximum length!"));var d;d="string"==typeof c.val()?parseInt(c.val())+1:c.val()+1;var e=this.decodeUString(d),a=stringToTag(e)}else c.type()==XML_DTAG&&(a=c.val())}catch(f){}finally{try{this.offset=b}catch(g){throw Log.logStackTrace(Log.FAC_ENCODING,
-Level.WARNING,g),Error("Cannot reset stream! "+g.getMessage(),g);}}return a};BinaryXMLDecoder.prototype.readBinaryElement=function(a,b){var c=null;this.readStartElement(a,b);return c=this.readBlob()};
+Level.WARNING,g),Error("Cannot reset stream! "+g.getMessage(),g);}}return a};BinaryXMLDecoder.prototype.readBinaryElement=function(a,b,c){this.readStartElement(a,b);return this.readBlob(c)};
 BinaryXMLDecoder.prototype.readEndElement=function(){4<LOG&&console.log("this.offset is "+this.offset);var a=this.istream[this.offset];this.offset++;4<LOG&&console.log("XML_CLOSE IS "+XML_CLOSE);4<LOG&&console.log("next is "+a);if(a!=XML_CLOSE)throw console.log("Expected end element, got: "+a),new ContentDecodingException(Error("Expected end element, got: "+a));};BinaryXMLDecoder.prototype.readUString=function(){var a=this.decodeUString();this.readEndElement();return a};
-BinaryXMLDecoder.prototype.readBlob=function(){var a=this.decodeBlob();this.readEndElement();return a};BinaryXMLDecoder.prototype.readDateTime=function(a){var a=this.readBinaryElement(a),a=DataUtils.toHex(a),a=parseInt(a,16),b=1E3*(a/4096);4<LOG&&console.log("DECODED DATE WITH VALUE");4<LOG&&console.log(b);b=new CCNTime(b);if(null==b)throw new ContentDecodingException(Error("Cannot parse timestamp: "+DataUtils.printHexBytes(a)));return b};
+BinaryXMLDecoder.prototype.readBlob=function(a){if(this.istream[this.offset]==XML_CLOSE&&a)return this.readEndElement(),null;a=this.decodeBlob();this.readEndElement();return a};
+BinaryXMLDecoder.prototype.readDateTime=function(a){var a=this.readBinaryElement(a),a=DataUtils.toHex(a),a=parseInt(a,16),b=1E3*(a/4096);4<LOG&&console.log("DECODED DATE WITH VALUE");4<LOG&&console.log(b);b=new CCNTime(b);if(null==b)throw new ContentDecodingException(Error("Cannot parse timestamp: "+DataUtils.printHexBytes(a)));return b};
 BinaryXMLDecoder.prototype.decodeTypeAndVal=function(){var a=-1,b=0,c=!0;do{var d=this.istream[this.offset];if(0>d||0==d&&0==b)return null;(c=0==(d&XML_TT_NO_MORE))?(b<<=XML_REG_VAL_BITS,b|=d&XML_REG_VAL_MASK):(a=d&XML_TT_MASK,b<<=XML_TT_VAL_BITS,b|=d>>>XML_TT_BITS&XML_TT_VAL_MASK);this.offset++}while(c);4<LOG&&console.log("TYPE is "+a+" VAL is "+b);return new TypeAndVal(a,b)};
 BinaryXMLDecoder.prototype.peekTypeAndVal=function(){var a=null,b=this.offset;try{a=this.decodeTypeAndVal()}finally{this.offset=b}return a};BinaryXMLDecoder.prototype.decodeBlob=function(a){if(null==a)return a=this.decodeTypeAndVal(),a="string"==typeof a.val()?parseInt(a.val()):a.val(),this.decodeBlob(a);var b=this.istream.subarray(this.offset,this.offset+a);this.offset+=a;return b};
 BinaryXMLDecoder.prototype.decodeUString=function(a){if(null==a){var a=this.offset,b=this.decodeTypeAndVal();4<LOG&&console.log("TV is "+b);4<LOG&&console.log(b);4<LOG&&console.log("Type of TV is "+typeof b);return null==b||XML_UDATA!=b.type()?(this.offset=a,""):this.decodeUString(b.val())}a=this.decodeBlob(a);return DataUtils.toString(a)};TypeAndVal=function(a,b){this.t=a;this.v=b};TypeAndVal.prototype.type=function(){return this.t};TypeAndVal.prototype.val=function(){return this.v};
@@ -261,7 +262,7 @@
 function getEntryForRegisteredPrefix(a){for(var b=0;b<NDN.CSTable.length;b++)if(null!=NDN.CSTable[b].name.match(a))return NDN.CSTable[b];return null}NDN.makeShuffledGetHostAndPort=function(a,b){a=a.slice(0,a.length);DataUtils.shuffle(a);return function(){return 0==a.length?null:{host:a.splice(0,1)[0],port:b}}};
 NDN.prototype.expressInterest=function(a,b,c){var d=new Interest(a);null!=c?(d.minSuffixComponents=c.minSuffixComponents,d.maxSuffixComponents=c.maxSuffixComponents,d.publisherPublicKeyDigest=c.publisherPublicKeyDigest,d.exclude=c.exclude,d.childSelector=c.childSelector,d.answerOriginKind=c.answerOriginKind,d.scope=c.scope,d.interestLifetime=c.interestLifetime):d.interestLifetime=4E3;if(null==this.host||null==this.port)if(null==this.getHostAndPort)console.log("ERROR: host OR port NOT SET");else{var e=
 this;this.connectAndExecute(function(){e.reconnectAndExpressInterest(d,b)})}else this.reconnectAndExpressInterest(d,b)};NDN.prototype.reconnectAndExpressInterest=function(a,b){if(this.transport.connectedHost!=this.host||this.transport.connectedPort!=this.port){var c=this;this.transport.connect(c,function(){c.expressInterestHelper(a,b)})}else this.expressInterestHelper(a,b)};
-NDN.prototype.expressInterestHelper=function(a,b){var c=encodeToBinaryInterest(a),d=this;if(null!=b){var e=new PITEntry(a,b);NDN.PITTable.push(e);b.pitEntry=e;var f=a.interestLifetime||4E3,g=function(){3<LOG&&console.log("Interest time out: "+a.name.to_uri());var h=NDN.PITTable.indexOf(e);0<=h&&NDN.PITTable.splice(h,1);b.upcall(Closure.UPCALL_INTEREST_TIMED_OUT,new UpcallInfo(d,a,0,null))==Closure.RESULT_REEXPRESS&&(3<LOG&&console.log("Re-express interest: "+a.name.to_uri()),e.timerID=setTimeout(g,
+NDN.prototype.expressInterestHelper=function(a,b){var c=encodeToBinaryInterest(a),d=this;if(null!=b){var e=new PITEntry(a,b);NDN.PITTable.push(e);b.pitEntry=e;var f=a.interestLifetime||4E3,g=function(){1<LOG&&console.log("Interest time out: "+a.name.to_uri());var h=NDN.PITTable.indexOf(e);0<=h&&NDN.PITTable.splice(h,1);b.upcall(Closure.UPCALL_INTEREST_TIMED_OUT,new UpcallInfo(d,a,0,null))==Closure.RESULT_REEXPRESS&&(1<LOG&&console.log("Re-express interest: "+a.name.to_uri()),e.timerID=setTimeout(g,
 f),NDN.PITTable.push(e),d.transport.send(c))};e.timerID=setTimeout(g,f)}this.transport.send(c)};
 NDN.prototype.registerPrefix=function(a,b,c){var d=this,e=function(){if(null==d.ccndid){var e=new Interest(NDN.ccndIdFetcher);e.interestLifetime=4E3;3<LOG&&console.log("Expressing interest for ccndid from ccnd.");d.reconnectAndExpressInterest(e,new NDN.FetchCcndidClosure(d,a,b,c))}else d.registerPrefixHelper(a,b,c)};null==this.host||null==this.port?null==this.getHostAndPort?console.log("ERROR: host OR port NOT SET"):this.connectAndExecute(e):e()};
 NDN.FetchCcndidClosure=function(a,b,c,d){Closure.call(this);this.ndn=a;this.name=b;this.callerClosure=c;this.flag=d};
@@ -275,8 +276,8 @@
 if(g.type==KeyLocatorType.KEYNAME)if(3<LOG&&console.log("KeyLocator contains KEYNAME"),g.keyName.contentName.match(a.name))3<LOG&&console.log("Content is key itself"),d=decodeSubjectPublicKeyInfo(a.content),c=d.verifyByteArray(a.rawSignatureData,f,c),c=!0==c?Closure.UPCALL_CONTENT:Closure.UPCALL_CONTENT_BAD,b.upcall(c,new UpcallInfo(this,null,0,a));else{var h=NDN.getKeyByName(g.keyName);h?(3<LOG&&console.log("Local key cache hit"),d=h.rsaKey,c=d.verifyByteArray(a.rawSignatureData,f,c),c=!0==c?Closure.UPCALL_CONTENT:
 Closure.UPCALL_CONTENT_BAD,b.upcall(c,new UpcallInfo(this,null,0,a))):(3<LOG&&console.log("Fetch key according to keylocator"),a=new d(a,b,g.keyName,c,f),this.expressInterest(g.keyName.contentName.getPrefix(4),a))}else g.type==KeyLocatorType.KEY?(3<LOG&&console.log("Keylocator contains KEY"),d=decodeSubjectPublicKeyInfo(a.signedInfo.locator.publicKey),c=d.verifyByteArray(a.rawSignatureData,f,c),c=!0==c?Closure.UPCALL_CONTENT:Closure.UPCALL_CONTENT_BAD,b.upcall(Closure.UPCALL_CONTENT,new UpcallInfo(this,
 null,0,a))):(a=g.certificate,console.log("KeyLocator contains CERT"),console.log(a))}}}}else console.log("Incoming packet is not Interest or ContentObject. Discard now.")};
-NDN.prototype.connectAndExecute=function(a){var b=this.getHostAndPort();if(null==b)console.log("ERROR: No more hosts from getHostAndPort"),this.host=null;else if(b.host==this.host&&b.port==this.port)console.log("ERROR: The host returned by getHostAndPort is not alive: "+this.host+":"+this.port);else{this.host=b.host;this.port=b.port;3<LOG&&console.log("Connect: trying host from getHostAndPort: "+this.host);b=new Interest(new Name("/"));b.interestLifetime=4E3;var c=this,d=setTimeout(function(){3<LOG&&
-console.log("Connect: timeout waiting for host "+c.host);c.connectAndExecute(a)},3E3);this.reconnectAndExpressInterest(b,new NDN.ConnectClosure(this,a,d))}};NDN.ConnectClosure=function(a,b,c){Closure.call(this);this.ndn=a;this.onConnected=b;this.timerID=c};NDN.ConnectClosure.prototype.upcall=function(a){if(!(a==Closure.UPCALL_CONTENT||a==Closure.UPCALL_CONTENT_UNVERIFIED))return Closure.RESULT_ERR;clearTimeout(this.timerID);this.ndn.readyStatus=NDN.OPENED;this.ndn.onopen();this.onConnected();return Closure.RESULT_OK};
-var BinaryXmlElementReader=function(a){this.elementListener=a;this.dataParts=[];this.structureDecoder=new BinaryXMLStructureDecoder};
+NDN.prototype.connectAndExecute=function(a){var b=this.getHostAndPort();if(null==b)console.log("ERROR: No more hosts from getHostAndPort"),this.host=null;else if(b.host==this.host&&b.port==this.port)console.log("ERROR: The host returned by getHostAndPort is not alive: "+this.host+":"+this.port);else{this.host=b.host;this.port=b.port;0<LOG&&console.log("connectAndExecute: trying host from getHostAndPort: "+this.host);b=new Interest(new Name("/"));b.interestLifetime=4E3;var c=this,d=setTimeout(function(){0<
+LOG&&console.log("connectAndExecute: timeout waiting for host "+c.host);c.connectAndExecute(a)},3E3);this.reconnectAndExpressInterest(b,new NDN.ConnectClosure(this,a,d))}};NDN.ConnectClosure=function(a,b,c){Closure.call(this);this.ndn=a;this.onConnected=b;this.timerID=c};
+NDN.ConnectClosure.prototype.upcall=function(a){if(!(a==Closure.UPCALL_CONTENT||a==Closure.UPCALL_CONTENT_UNVERIFIED))return Closure.RESULT_ERR;clearTimeout(this.timerID);this.ndn.readyStatus=NDN.OPENED;this.ndn.onopen();0<LOG&&console.log("connectAndExecute: connected to host "+this.ndn.host);this.onConnected();return Closure.RESULT_OK};var BinaryXmlElementReader=function(a){this.elementListener=a;this.dataParts=[];this.structureDecoder=new BinaryXMLStructureDecoder};
 BinaryXmlElementReader.prototype.onReceivedData=function(a){for(;;)if(this.structureDecoder.seek(0),this.structureDecoder.findElementEnd(a)){this.dataParts.push(a.subarray(0,this.structureDecoder.offset));var b=DataUtils.concatArrays(this.dataParts);this.dataParts=[];try{this.elementListener.onReceivedElement(b)}catch(c){console.log("BinaryXmlElementReader: ignoring exception from onReceivedElement: "+c)}a=a.subarray(this.structureDecoder.offset,a.length);this.structureDecoder=new BinaryXMLStructureDecoder;
 if(0==a.length)break}else{this.dataParts.push(a);3<LOG&&console.log("Incomplete packet received. Length "+a.length+". Wait for more input.");break}};