Retrieve FrameIncrementPointer as an attribute and FrameTimeVector as a float array via DICOMWeb and DIMSE

Packages/dimseservice/server/DIMSE.js

@@ -39,7 +39,9 @@ var getInstanceRetrievalParams = function(studyInstanceUID, seriesInstanceUID) {
         0x00280004: '', // photometricInterpretation
         0x0008002A: '', // acquisitionDatetime
         0x00280008: '', // numFrames
+        0x00280009: '', // frameIncrementPointer
         0x00181063: '', // frameTime
+        0x00181065: '', // frameTimeVector
         0x00281052: '', // rescaleIntercept
         0x00281053: '', // rescaleSlope
         0x00280002: '', // samplesPerPixel

Packages/dimseservice/server/Data.js

@@ -210,11 +210,14 @@ util.inherits(AttributeTag, ValueRepresentation);
 
 AttributeTag.prototype.readBytes = function(stream, length) {
     var group = stream.read(C.TYPE_UINT16),
-   element = stream.read(C.TYPE_UINT16);
+    element = stream.read(C.TYPE_UINT16);
     return tagFromNumbers(group, element);
 };
 
 AttributeTag.prototype.getFields = function(value) {
+    if (!value)
+        return AttributeTag.super_.prototype.getFields.call(this, [new StringField("")]);
+
     return AttributeTag.super_.prototype.getFields.call(this, [new UInt16Field(value.group()), new UInt16Field(value.element())]);
 };