diff --git a/lib/dash/mpd_utils.js b/lib/dash/mpd_utils.js
index 20fc45590..d1e710cfa 100644
--- a/lib/dash/mpd_utils.js
+++ b/lib/dash/mpd_utils.js
@@ -98,7 +98,7 @@ shaka.dash.MpdUtils.SegmentInfo;
  */
 shaka.dash.MpdUtils.fillUriTemplate = function(
     uriTemplate, representationId, number, bandwidth, time) {
-  if (time !== null) {
+  if (time != null) {
     goog.asserts.assert(Math.abs(time - Math.round(time)) < 0.2,
                         'Calculated $Time$ values must be close to integers!');
     time = Math.round(time);
diff --git a/lib/dash/segment_list.js b/lib/dash/segment_list.js
index 17c21f02b..0c241032f 100644
--- a/lib/dash/segment_list.js
+++ b/lib/dash/segment_list.js
@@ -161,7 +161,7 @@ shaka.dash.SegmentList.parseSegmentListInfo_ = function(context) {
       MpdUtils.parseSegmentInfo(context, SegmentList.fromInheritance_);
 
   var startNumber = segmentInfo.startNumber;
-  if (startNumber === 0) {
+  if (startNumber == 0) {
     shaka.log.warning('SegmentList@startNumber must be > 0');
     startNumber = 1;
   }
diff --git a/lib/media/playhead.js b/lib/media/playhead.js
index eb82c22c1..7d9d15908 100644
--- a/lib/media/playhead.js
+++ b/lib/media/playhead.js
@@ -305,8 +305,8 @@ shaka.media.Playhead.prototype.updateTimelineRegion_ = function(
       (region.info.endTime < this.video_.currentTime ?
            shaka.media.Playhead.RegionLocation.PAST_REGION :
            shaka.media.Playhead.RegionLocation.INSIDE);
-  var wasInside = region.status === shaka.media.Playhead.RegionLocation.INSIDE;
-  var isInside = newStatus === shaka.media.Playhead.RegionLocation.INSIDE;
+  var wasInside = region.status == shaka.media.Playhead.RegionLocation.INSIDE;
+  var isInside = newStatus == shaka.media.Playhead.RegionLocation.INSIDE;
 
   if (newStatus != region.status) {
     var passedRegion = !wasInside && !isInside;
diff --git a/lib/net/networking_engine.js b/lib/net/networking_engine.js
index db0b40733..1b3dd665f 100644
--- a/lib/net/networking_engine.js
+++ b/lib/net/networking_engine.js
@@ -355,7 +355,7 @@ shaka.net.NetworkingEngine.prototype.send_ = function(
 
   var startTimeMs = Date.now();
   return plugin(request.uris[index], request, type).then(function(response) {
-    if (response.timeMs === undefined)
+    if (response.timeMs == undefined)
       response.timeMs = Date.now() - startTimeMs;
     var filterStartMs = Date.now();
 
diff --git a/lib/util/xml_utils.js b/lib/util/xml_utils.js
index 337360ece..76883f66d 100644
--- a/lib/util/xml_utils.js
+++ b/lib/util/xml_utils.js
@@ -97,7 +97,7 @@ shaka.util.XmlUtils.parseAttr = function(
     parsedValue = parseFunction(value);
 
   if (parsedValue == null)
-    return opt_defaultValue !== undefined ? opt_defaultValue : null;
+    return opt_defaultValue != undefined ? opt_defaultValue : null;
 
   return parsedValue;
 };