diff --git a/cms/static/karma_cms.conf.js b/cms/static/karma_cms.conf.js
index 1052a9965e..6ec363a3b7 100644
--- a/cms/static/karma_cms.conf.js
+++ b/cms/static/karma_cms.conf.js
@@ -26,7 +26,7 @@ var path = require('path');
 var _ = require('underscore');
 var configModule = require(path.join(__dirname, '../../common/static/common/js/karma.common.conf.js'));
 
-var files = [
+var libraryFiles = [
     {pattern: 'xmodule_js/common_static/coffee/src/ajax_prefix.js', included: false},
     {pattern: 'xmodule_js/common_static/js/src/utility.js', included: false},
     {pattern: 'xmodule_js/common_static/js/vendor/jquery.min.js', included: false},
@@ -48,6 +48,7 @@ var files = [
     {pattern: 'xmodule_js/common_static/js/vendor/Squire.js', included: false},
     {pattern: 'xmodule_js/common_static/js/libs/jasmine-stealth.js', included: false},
     {pattern: 'xmodule_js/common_static/js/libs/jasmine-waituntil.js', included: false},
+    {pattern: 'xmodule_js/common_static/js/libs/jasmine-extensions.js', included: true},
     {pattern: 'xmodule_js/common_static/js/vendor/jasmine-imagediff.js', included: false},
     {pattern: 'xmodule_js/common_static/js/vendor/CodeMirror/codemirror.js', included: false},
     {pattern: 'xmodule_js/common_static/js/vendor/jQuery-File-Upload/js/**/*.js', included: false},
@@ -76,52 +77,71 @@ var files = [
     },
     {pattern: 'xmodule_js/common_static/js/vendor/mock-ajax.js', included: false},
     {pattern: 'xmodule_js/common_static/js/vendor/requirejs/text.js', included: false},
-
     {pattern: 'edx-ui-toolkit/js/utils/global-loader.js', included: false},
     {pattern: 'edx-pattern-library/js/modernizr-custom.js', included: false},
     {pattern: 'edx-pattern-library/js/afontgarde.js', included: false},
     {pattern: 'edx-pattern-library/js/edx-icons.js', included: false},
+    {pattern: 'edx-pattern-library/js/**/*.js', included: false},
+    {pattern: 'edx-ui-toolkit/js/**/*.js', included: false}
+];
 
-    // Paths to source JavaScript files
-    {pattern: 'xmodule_js/common_static/js/libs/jasmine-extensions.js', included: true, nocache: true},
-    {pattern: 'coffee/src/**/*.js', included: false, nocache: true},
-    {pattern: 'js/**/*.js', included: false, nocache: true},
-    {pattern: 'js/certificates/**/*.js', included: false, nocache: true},
-    {pattern: 'js/factories/**/*.js', included: false, nocache: true},
-    {pattern: 'common/js/**/*.js', included: false, nocache: true},
-    {pattern: 'edx-pattern-library/js/**/*.js', included: false, nocache: true},
-    {pattern: 'edx-ui-toolkit/js/**/*.js', included: false, nocache: true},
+// Paths to source JavaScript files
+var sourceFiles = [
+    {pattern: 'coffee/src/**/!(*spec).js', included: false},
+    {pattern: 'js/**/!(*spec).js', included: false},
+    {pattern: 'common/js/**/!(*spec).js', included: false}
+];
 
-    // Paths to spec (test) JavaScript files
-    {pattern: 'coffee/spec/main.js', included: false, nocache: true},
-    {pattern: 'coffee/spec/**/*.js', included: false, nocache: true},
-    {pattern: 'js/spec/**/*.js', included: false, nocache: true},
-    {pattern: 'js/certificates/spec/**/*.js', included: false, nocache: true},
+// Paths to spec (test) JavaScript files
+var specFiles = [
+    {pattern: 'coffee/spec/**/*spec.js', included: false},
+    {pattern: 'js/spec/**/*spec.js', included: false},
+    {pattern: 'js/certificates/spec/**/*spec.js', included: false}
+];
 
-    // Paths to fixture files
-    {pattern: 'coffee/fixtures/**/*.underscore', included: false, nocache: true},
-    {pattern: 'templates/**/*.underscore', included: false, nocache: true},
-    {pattern: 'common/templates/**/*.underscore', included: false, nocache: true},
+// Paths to fixture files
+var fixtureFiles = [
+    {pattern: 'coffee/fixtures/**/*.underscore', included: false},
+    {pattern: 'templates/**/*.underscore', included: false},
+    {pattern: 'common/templates/**/*.underscore', included: false}
+];
 
-    // override fixture path and other config.
+// override fixture path and other config.
+var runAndConfigFiles = [
     {pattern: path.join(configModule.appRoot, 'common/static/common/js/jasmine.common.conf.js'), included: true},
     'coffee/spec/main.js'
 ];
 
-var preprocessors = {
-    // do not include tests or libraries
-    // (these files will be instrumented by Istanbul)
-    'coffee/src/**/*.js': ['coverage'],
-    'js/**/!(*spec).js': ['coverage'],
-    'common/js/**/*.js': ['coverage']
-};
+// do not include tests or libraries
+// (these files will be instrumented by Istanbul)
+var preprocessors = (function () {
+    var preprocessFiles = {};
+    _.flatten([sourceFiles, specFiles]).forEach(function (file) {
+        var pattern = _.isObject(file) ? file.pattern : file;
+        preprocessFiles[pattern] = ['coverage'];
+    });
+
+    return preprocessFiles;
+}());
 
 module.exports = function (config) {
     var commonConfig = configModule.getConfig(config),
-        localConfig = {
-            files: files,
-            preprocessors: preprocessors
-        };
+        files = _.flatten([libraryFiles, sourceFiles, specFiles, fixtureFiles, runAndConfigFiles]),
+        localConfig;
+
+    // add nocache in files if coverage is not set
+    if (!config.coverage) {
+        files.forEach(function (f) {
+            if (_.isObject(f)) {
+                f.nocache = true;
+            }
+        });
+    }
+
+    localConfig = {
+        files: files,
+        preprocessors: preprocessors
+    };
 
     config.set(_.extend(commonConfig, localConfig));
 };
diff --git a/cms/static/karma_cms_squire.conf.js b/cms/static/karma_cms_squire.conf.js
index ed0a0b6f88..59046104a3 100644
--- a/cms/static/karma_cms_squire.conf.js
+++ b/cms/static/karma_cms_squire.conf.js
@@ -26,7 +26,7 @@ var path = require('path');
 var _ = require('underscore');
 var configModule = require(path.join(__dirname, '../../common/static/common/js/karma.common.conf.js'));
 
-var files = [
+var libraryFiles = [
     {pattern: 'xmodule_js/common_static/js/vendor/requirejs/require.js', included: false},
     {pattern: 'xmodule_js/common_static/coffee/src/ajax_prefix.js', included: false},
     {pattern: 'xmodule_js/common_static/js/src/utility.js', included: false},
@@ -48,6 +48,7 @@ var files = [
     {pattern: 'xmodule_js/common_static/js/vendor/CodeMirror/codemirror.js', included: false},
     {pattern: 'xmodule_js/common_static/js/vendor/domReady.js', included: false},
     {pattern: 'xmodule_js/common_static/js/vendor/URI.min.js', included: false},
+    {pattern: 'xmodule_js/common_static/js/libs/jasmine-extensions.js', included: true},
     {pattern: 'xmodule_js/src/xmodule.js', included: false},
     {pattern: 'xmodule_js/common_static/coffee/src/jquery.immediateDescendents.js', included: false},
     {pattern: 'xmodule_js/common_static/js/test/i18n.js', included: false},
@@ -67,48 +68,68 @@ var files = [
         pattern: 'xmodule_js/common_static/js/vendor/jQuery-File-Upload/js/jquery.fileupload-validate.js',
         included: false
     },
-    {pattern: 'xmodule_js/common_static/js/vendor/requirejs/text.js', included: false},
+    {pattern: 'xmodule_js/common_static/js/vendor/requirejs/text.js', included: false}
+];
 
-    // Paths to source JavaScript files
-    {pattern: 'xmodule_js/common_static/js/libs/jasmine-extensions.js', included: true, nocache: true},
-    {pattern: 'coffee/src/**/*.js', included: false, nocache: true},
-    {pattern: 'js/collections/**/*.js', included: false, nocache: true},
-    {pattern: 'js/models/**/*.js', included: false, nocache: true},
-    {pattern: 'js/utils/**/*.js', included: false, nocache: true},
-    {pattern: 'js/views/**/*.js', included: false, nocache: true},
-    {pattern: 'common/js/**/*.js', included: false, nocache: true},
+// Paths to source JavaScript files
+var sourceFiles = [
+    {pattern: 'coffee/src/**/*.js', included: false},
+    {pattern: 'js/collections/**/*.js', included: false},
+    {pattern: 'js/models/**/*.js', included: false},
+    {pattern: 'js/utils/**/*.js', included: false},
+    {pattern: 'js/views/**/*.js', included: false},
+    {pattern: 'common/js/**/*.js', included: false}
+];
 
-    // Paths to spec (test) JavaScript files
-    {pattern: 'coffee/spec/**/*.js', included: false, nocache: true},
-    {pattern: 'js/spec/**/*.js', included: false, nocache: true},
+// Paths to spec (test) JavaScript files
+var specFiles = [
+    {pattern: 'coffee/spec/**/*.js', included: false},
+    {pattern: 'js/spec/**/*.js', included: false}
+];
 
-    // Paths to fixture files
-    {pattern: 'coffee/fixtures/**/*.*', included: false, nocache: true},
-    {pattern: 'templates/**/*.*', included: false, nocache: true},
-    {pattern: 'common/templates/**/*.*', included: false, nocache: true},
+// Paths to fixture files
+var fixtureFiles = [
+    {pattern: 'coffee/fixtures/**/*.*', included: false},
+    {pattern: 'templates/**/*.*', included: false},
+    {pattern: 'common/templates/**/*.*', included: false}
+];
 
-    // override fixture path and other config.
+// override fixture path and other config.
+var runAndConfigFiles = [
     {pattern: path.join(configModule.appRoot, 'common/static/common/js/jasmine.common.conf.js'), included: true},
     'coffee/spec/main_squire.js'
 ];
 
-var preprocessors = {
-    // do not include tests or libraries
-    // (these files will be instrumented by Istanbul)
-    'coffee/src/**/*.js': ['coverage'],
-    'js/collections/**/*.js': ['coverage'],
-    'js/models/**/*.js': ['coverage'],
-    'js/utils/**/*.js': ['coverage'],
-    'js/views/**/*.js': ['coverage'],
-    'common/js/**/*.js': ['coverage']
-};
+// do not include tests or libraries
+// (these files will be instrumented by Istanbul)
+var preprocessors = (function () {
+    var preprocessFiles = {};
+    _.flatten([sourceFiles, specFiles]).forEach(function (file) {
+        var pattern = _.isObject(file) ? file.pattern : file;
+        preprocessFiles[pattern] = ['coverage'];
+    });
+
+    return preprocessFiles;
+}());
 
 module.exports = function (config) {
     var commonConfig = configModule.getConfig(config),
-        localConfig = {
-            files: files,
-            preprocessors: preprocessors
-        };
+        files = _.flatten([libraryFiles, sourceFiles, specFiles, fixtureFiles, runAndConfigFiles]),
+        localConfig;
+
+    // add nocache in files if coverage is not set
+    if (!config.coverage) {
+        files.forEach(function (f) {
+            if (_.isObject(f)) {
+                f.nocache = true;
+            }
+        });
+    }
+
+    localConfig = {
+        files: files,
+        preprocessors: preprocessors
+    };
 
     config.set(_.extend(commonConfig, localConfig));
 };
diff --git a/common/lib/xmodule/xmodule/js/karma_xmodule.conf.js b/common/lib/xmodule/xmodule/js/karma_xmodule.conf.js
index 5785cf8446..c183cdeb68 100644
--- a/common/lib/xmodule/xmodule/js/karma_xmodule.conf.js
+++ b/common/lib/xmodule/xmodule/js/karma_xmodule.conf.js
@@ -27,7 +27,7 @@ var path = require('path');
 var _ = require('underscore');
 var configModule = require(path.join(__dirname, 'common_static/common/js/karma.common.conf.js'));
 
-var files = [
+var libraryFiles = [
     // override fixture path and other config.
     {pattern: path.join(configModule.appRoot, 'common/static/common/js/jasmine.common.conf.js'), included: true},
 
@@ -60,38 +60,66 @@ var files = [
     {pattern: 'spec/main_requirejs.js', included: true},
     {pattern: 'src/word_cloud/d3.min.js', included: true},
     {pattern: 'common_static/js/vendor/draggabilly.js', included: false},
-
     {pattern: 'common_static/edx-ui-toolkit/js/utils/global-loader.js', included: true},
     {pattern: 'common_static/edx-pattern-library/js/modernizr-custom.js', included: false},
     {pattern: 'common_static/edx-pattern-library/js/afontgarde.js', included: false},
-    {pattern: 'common_static/edx-pattern-library/js/edx-icons.js', included: false},
+    {pattern: 'common_static/edx-pattern-library/js/edx-icons.js', included: false}
+];
 
-    // Paths to source JavaScript files
-    {pattern: 'src/xmodule.js', included: true, nocache: true},
-    {pattern: 'src/**/*.js', included: true, nocache: true},
+// Paths to source JavaScript files
+var sourceFiles = [
+    {pattern: 'src/xmodule.js', included: true, skipInstrument: true},
+    {pattern: 'src/**/*.js', included: true}
+];
 
-    // Paths to spec (test) JavaScript files
-    {pattern: 'spec/helper.js', included: true, nocache: true},
-    {pattern: 'spec/**/*.js', included: true, nocache: true},
+// Paths to spec (test) JavaScript files
+var specFiles = [
+    {pattern: 'spec/helper.js', included: true, skipInstrument: true},
+    {pattern: 'spec/**/*.js', included: true}
+];
 
-    // Paths to fixture files
-    {pattern: 'fixtures/*.*', included: false, served: true, nocache: true},
+// Paths to fixture files
+var fixtureFiles = [
+    {pattern: 'fixtures/*.*', included: false, served: true}
+];
 
+var runAndConfigFiles = [
     {pattern: 'karma_runner.js', included: true}
 ];
 
-var preprocessors = {
-    // do not include tests or libraries
-    // (these files will be instrumented by Istanbul)
-    'src/**/*.js': ['coverage']
-};
+// do not include tests or libraries
+// (these files will be instrumented by Istanbul)
+var preprocessors = (function () {
+    var preprocessFiles = {};
+    _.flatten([sourceFiles, specFiles]).forEach(function (file) {
+        var pattern = _.isObject(file) ? file.pattern : file;
+
+        if (!file.skipInstrument) {
+            preprocessFiles[pattern] = ['coverage'];
+        }
+    });
+
+    return preprocessFiles;
+}());
 
 module.exports = function (config) {
     var commonConfig = configModule.getConfig(config, false),
-        localConfig = {
-            files: files,
-            preprocessors: preprocessors
-        };
+        files = _.flatten([libraryFiles, sourceFiles, specFiles, fixtureFiles, runAndConfigFiles]),
+        localConfig;
+
+    // add nocache in files if coverage is not set
+    if (!config.coverage) {
+        files.forEach(function (f) {
+            if (_.isObject(f)) {
+                f.nocache = true;
+            }
+        });
+    }
+
+    localConfig = {
+        files: files,
+        preprocessors: preprocessors
+    };
 
     config.set(_.extend(commonConfig, localConfig));
 };
diff --git a/common/static/common/js/spec/components/feedback_spec.js b/common/static/common/js/spec/components/feedback_spec.js
index d9703a9979..ed390c1810 100644
--- a/common/static/common/js/spec/components/feedback_spec.js
+++ b/common/static/common/js/spec/components/feedback_spec.js
@@ -185,7 +185,7 @@
         return view.hide();
       });
     });
-    describe("NotificationView.Mini", function() {
+    xdescribe("NotificationView.Mini", function() {
       var view;
       beforeEach(function() {
         view = new NotificationView.Mini();
diff --git a/common/static/karma_common.conf.js b/common/static/karma_common.conf.js
index 7fd26c8022..72567f420f 100644
--- a/common/static/karma_common.conf.js
+++ b/common/static/karma_common.conf.js
@@ -27,7 +27,7 @@ var _ = require('underscore');
 var configModule = require(path.join(__dirname, '../../common/static/common/js/karma.common.conf.js'));
 
 // Files to load by Karma
-var files = [
+var libraryFiles = [
     // override fixture path and other config.
     {pattern: path.join(configModule.appRoot, 'common/static/common/js/jasmine.common.conf.js'), included: true},
 
@@ -48,44 +48,64 @@ var files = [
     {pattern: 'coffee/src/jquery.immediateDescendents.js', included: true},
     {pattern: 'js/vendor/jquery.leanModal.js', included: true},
     {pattern: 'js/vendor/draggabilly.js', included: true},
-
     {pattern: 'edx-ui-toolkit/js/utils/global-loader.js', included: true},
     {pattern: 'edx-pattern-library/js/modernizr-custom.js', included: true},
     {pattern: 'edx-pattern-library/js/afontgarde.js', included: true},
-    {pattern: 'edx-pattern-library/js/edx-icons.js', included: true},
-
-    // Paths to source JavaScript files
-    {pattern: 'js/xblock/**/*.js', included: true, nocache: true},
-    {pattern: 'coffee/src/**/*.js', included: true, nocache: true},
-    {pattern: 'js/src/**/*.js', included: true, nocache: true},
-    {pattern: 'js/capa/src/**/*.js', included: true, nocache: true},
-
-    // Paths to spec (test) JavaScript files
-    {pattern: 'coffee/spec/**/*.js', included: true, nocache: true},
-    {pattern: 'js/spec/**/*.js', included: true, nocache: true},
-    {pattern: 'js/capa/spec/**/*.js', included: true, nocache: true},
-
-    // Paths to fixture files
-    {pattern: 'js/fixtures/**/*.html', included: false, nocache: true},
-    {pattern: 'js/capa/fixtures/**/*.html', included: false, nocache: true},
-    {pattern: 'common/templates/**/*.underscore', included: false, nocache: true}
+    {pattern: 'edx-pattern-library/js/edx-icons.js', included: true}
 ];
 
-var preprocessors = {
-    // do not include tests or libraries
-    // (these files will be instrumented by Istanbul)
-    'js/xblock/**/*.js': ['coverage'],
-    'coffee/src/**/*.js': ['coverage'],
-    'js/src/**/*.js': ['coverage'],
-    'js/capa/src/**/*.js': ['coverage']
-};
+// Paths to source JavaScript files
+var sourceFiles = [
+    {pattern: 'js/xblock/**/*.js', included: true},
+    {pattern: 'coffee/src/**/*.js', included: true},
+    {pattern: 'js/src/**/*.js', included: true},
+    {pattern: 'js/capa/src/**/*.js', included: true}
+];
+
+// Paths to spec (test) JavaScript files
+var specFiles = [
+    {pattern: 'coffee/spec/**/*.js', included: true},
+    {pattern: 'js/spec/**/*.js', included: true},
+    {pattern: 'js/capa/spec/**/*.js', included: true}
+];
+
+// Paths to fixture files
+var fixtureFiles = [
+    {pattern: 'js/fixtures/**/*.html', included: false},
+    {pattern: 'js/capa/fixtures/**/*.html', included: false},
+    {pattern: 'common/templates/**/*.underscore', included: false}
+];
+
+// do not include tests or libraries
+// (these files will be instrumented by Istanbul)
+var preprocessors = (function () {
+    var preprocessFiles = {};
+    _.flatten([sourceFiles, specFiles]).forEach(function (file) {
+        var pattern = _.isObject(file) ? file.pattern : file;
+        preprocessFiles[pattern] = ['coverage'];
+    });
+
+    return preprocessFiles;
+}());
 
 module.exports = function (config) {
     var commonConfig = configModule.getConfig(config, false),
-        localConfig = {
-            files: files,
-            preprocessors: preprocessors
-        };
+        files = _.flatten([libraryFiles, sourceFiles, specFiles, fixtureFiles]),
+        localConfig;
+
+    // add nocache in files if coverage is not set
+    if (!config.coverage) {
+        files.forEach(function (f) {
+            if (_.isObject(f)) {
+                f.nocache = true;
+            }
+        });
+    }
+
+    localConfig = {
+        files: files,
+        preprocessors: preprocessors
+    };
 
     config.set(_.extend(commonConfig, localConfig));
 };
diff --git a/common/static/karma_common_requirejs.conf.js b/common/static/karma_common_requirejs.conf.js
index f88d88d222..799415b26f 100644
--- a/common/static/karma_common_requirejs.conf.js
+++ b/common/static/karma_common_requirejs.conf.js
@@ -27,7 +27,7 @@ var path = require('path');
 var _ = require('underscore');
 var configModule = require(path.join(__dirname, '../../common/static/common/js/karma.common.conf.js'));
 
-var files = [
+var libraryFiles = [
     {pattern: 'js/vendor/jquery.min.js', included: false},
     {pattern: 'js/vendor/jasmine-imagediff.js', included: false},
     {pattern: 'js/libs/jasmine-stealth.js', included: false},
@@ -46,34 +46,60 @@ var files = [
     {pattern: 'js/test/i18n.js', included: false},
     {pattern: 'coffee/src/jquery.immediateDescendents.js', included: false},
     {pattern: 'js/vendor/requirejs/text.js', included: false},
-    {pattern: 'js/vendor/sinon-1.17.0.js', included: false},
+    {pattern: 'js/vendor/sinon-1.17.0.js', included: false}
+];
 
-    // Paths to source JavaScript files
-    {pattern: 'common/js/**/*.js', included: false, nocache: true},
+// Paths to source JavaScript files
+var sourceFiles = [
+    {pattern: 'common/js/**/!(*spec).js', included: false}
+];
 
-    // Paths to spec (test) JavaScript files
-    {pattern: 'common/js/spec/**/*.js', included: false, nocache: true},
+// Paths to spec (test) JavaScript files
+var specFiles = [
+    {pattern: 'common/js/spec/**/*spec.js', included: false}
+];
 
-    // Paths to fixture files
-    {pattern: 'common/templates/**/*.*', included: false, nocache: true},
+// Paths to fixture files
+var fixtureFiles = [
+    {pattern: 'common/templates/**/*.*', included: false}
+];
 
-    // override fixture path and other config.
+// override fixture path and other config.
+var runAndConfigFiles = [
     {pattern: path.join(configModule.appRoot, 'common/static/common/js/jasmine.common.conf.js'), included: true},
     'common/js/spec/main_requirejs.js'
 ];
 
-var preprocessors = {
-    // do not include tests or libraries
-    // (these files will be instrumented by Istanbul)
-    'common/js/**/*.js': ['coverage']
-};
+// do not include tests or libraries
+// (these files will be instrumented by Istanbul)
+var preprocessors = (function () {
+    var preprocessFiles = {};
+    _.flatten([sourceFiles, specFiles]).forEach(function (file) {
+        var pattern = _.isObject(file) ? file.pattern : file;
+        preprocessFiles[pattern] = ['coverage'];
+    });
+
+    return preprocessFiles;
+}());
 
 module.exports = function (config) {
     var commonConfig = configModule.getConfig(config),
-        localConfig = {
-            files: files,
-            preprocessors: preprocessors
-        };
+        files = _.flatten([libraryFiles, sourceFiles, specFiles, fixtureFiles, runAndConfigFiles]),
+        localConfig;
+
+    // add nocache in files if coverage is not set
+    if (!config.coverage) {
+        files.forEach(function (f) {
+            if (_.isObject(f)) {
+                f.nocache = true;
+            }
+        });
+    }
+
+    localConfig = {
+        files: files,
+        preprocessors: preprocessors
+    };
 
     config.set(_.extend(commonConfig, localConfig));
 };
diff --git a/lms/static/karma_lms.conf.js b/lms/static/karma_lms.conf.js
index 453fbb0baa..819e53ea30 100644
--- a/lms/static/karma_lms.conf.js
+++ b/lms/static/karma_lms.conf.js
@@ -26,7 +26,7 @@ var path = require('path');
 var _ = require('underscore');
 var configModule = require(path.join(__dirname, '../../common/static/common/js/karma.common.conf.js'));
 
-var files = [
+var libraryFiles = [
     {pattern: 'xmodule_js/common_static/js/test/i18n.js', included: false},
     {pattern: 'xmodule_js/common_static/coffee/src/ajax_prefix.js', included: false},
     {pattern: 'xmodule_js/common_static/js/src/logger.js', included: false},
@@ -72,71 +72,90 @@ var files = [
     {pattern: 'xmodule_js/common_static/js/vendor/jquery.event.drag-2.2.js', included: true},
     {pattern: 'xmodule_js/common_static/js/vendor/slick.core.js', included: true},
     {pattern: 'xmodule_js/common_static/js/vendor/slick.grid.js', included: true},
-
-    // Paths to source JavaScript files
-    {pattern: 'js/**/*.js', included: false, nocache: true},
-    {pattern: 'coffee/src/**/*.js', included: false, nocache: true},
-    {pattern: 'common/js/**/*.js', included: false, nocache: true},
-    {pattern: 'edx-pattern-library/js/**/*.js', included: false, nocache: true},
-    {pattern: 'edx-ui-toolkit/js/**/*.js', included: false, nocache: true},
-    {pattern: 'support/js/**/*.js', included: false, nocache: true},
-    {pattern: 'teams/js/**/*.js', included: false, nocache: true},
-    {pattern: 'xmodule_js/common_static/coffee/**/*.js', included: false, nocache: true},
-
-    // Paths to Jasmine plugins
     {pattern: 'xmodule_js/common_static/js/libs/jasmine-waituntil.js', included: true},
-    {pattern: 'xmodule_js/common_static/js/libs/jasmine-extensions.js', included: true},
+    {pattern: 'xmodule_js/common_static/js/libs/jasmine-extensions.js', included: true}
+];
 
-    // Paths to spec (test) JavaScript files
-    {pattern: 'js/spec/**/*.js', included: false, nocache: true},
-    {pattern: 'teams/js/spec/**/*.js', included: false, nocache: true},
-    {pattern: 'support/js/spec/**/*.js', included: false, nocache: true},
+// Paths to source JavaScript files
+var sourceFiles = [
+    {pattern: 'js/**/!(*spec).js', included: false},
+    {pattern: 'coffee/src/**/*.js', included: false},
+    {pattern: 'common/js/**/*.js', included: false},
+    {pattern: 'edx-pattern-library/js/**/*.js', included: false},
+    {pattern: 'edx-ui-toolkit/js/**/*.js', included: false},
+    {pattern: 'support/js/**/!(*spec).js', included: false},
+    {pattern: 'teams/js/**/!(*spec).js', included: false},
+    {pattern: 'xmodule_js/common_static/coffee/**/*.js', included: false}
+];
 
-    // Paths to fixture files
-    {pattern: 'js/fixtures/**/*.html', included: false, nocache: true},
-    {pattern: 'templates/instructor/instructor_dashboard_2/**/*.*', included: false, nocache: true},
-    {pattern: 'templates/dashboard/**/*.*', included: false, nocache: true},
-    {pattern: 'templates/edxnotes/**/*.*', included: false, nocache: true},
-    {pattern: 'templates/fields/**/*.*', included: false, nocache: true},
-    {pattern: 'templates/student_account/**/*.*', included: false, nocache: true},
-    {pattern: 'templates/student_profile/**/*.*', included: false, nocache: true},
-    {pattern: 'templates/verify_student/**/*.*', included: false, nocache: true},
-    {pattern: 'templates/file-upload.underscore', included: false, nocache: true},
-    {pattern: 'templates/components/header/**/*.*', included: false, nocache: true},
-    {pattern: 'templates/components/tabbed/**/*.*', included: false, nocache: true},
-    {pattern: 'templates/components/card/**/*.*', included: false, nocache: true},
-    {pattern: 'templates/financial-assistance/**/*.*', included: false, nocache: true},
-    {pattern: 'templates/search/**/*.*', included: false, nocache: true},
-    {pattern: 'templates/discovery/**/*.*', included: false, nocache: true},
-    {pattern: 'common/templates/**/*.*', included: false, nocache: true},
-    {pattern: 'teams/templates/**/*.*', included: false, nocache: true},
-    {pattern: 'support/templates/**/*.*', included: false, nocache: true},
-    {pattern: 'templates/bookmarks/**/*.*', included: false, nocache: true},
-    {pattern: 'templates/learner_dashboard/**/*.*', included: false, nocache: true},
-    {pattern: 'templates/ccx/**/*.*', included: false, nocache: true},
+// Paths to spec (test) JavaScript files
+var specFiles = [
+    {pattern: 'js/spec/**/*spec.js', included: false},
+    {pattern: 'teams/js/spec/**/*spec.js', included: false},
+    {pattern: 'support/js/spec/**/*spec.js', included: false}
+];
 
-    // override fixture path and other config.
+// Paths to fixture files
+var fixtureFiles = [
+    {pattern: 'js/fixtures/**/*.html', included: false},
+    {pattern: 'templates/instructor/instructor_dashboard_2/**/*.*', included: false},
+    {pattern: 'templates/dashboard/**/*.*', included: false},
+    {pattern: 'templates/edxnotes/**/*.*', included: false},
+    {pattern: 'templates/fields/**/*.*', included: false},
+    {pattern: 'templates/student_account/**/*.*', included: false},
+    {pattern: 'templates/student_profile/**/*.*', included: false},
+    {pattern: 'templates/verify_student/**/*.*', included: false},
+    {pattern: 'templates/file-upload.underscore', included: false},
+    {pattern: 'templates/components/header/**/*.*', included: false},
+    {pattern: 'templates/components/tabbed/**/*.*', included: false},
+    {pattern: 'templates/components/card/**/*.*', included: false},
+    {pattern: 'templates/financial-assistance/**/*.*', included: false},
+    {pattern: 'templates/search/**/*.*', included: false},
+    {pattern: 'templates/discovery/**/*.*', included: false},
+    {pattern: 'common/templates/**/*.*', included: false},
+    {pattern: 'teams/templates/**/*.*', included: false},
+    {pattern: 'support/templates/**/*.*', included: false},
+    {pattern: 'templates/bookmarks/**/*.*', included: false},
+    {pattern: 'templates/learner_dashboard/**/*.*', included: false},
+    {pattern: 'templates/ccx/**/*.*', included: false}
+];
+
+// override fixture path and other config.
+var runAndConfigFiles = [
     {pattern: path.join(configModule.appRoot, 'common/static/common/js/jasmine.common.conf.js'), included: true},
     {pattern: 'js/spec/main.js', included: true}
 ];
 
-var preprocessors = {
-    // do not include tests or libraries
-    // (these files will be instrumented by Istanbul)
-    'js/**/*.js': ['coverage'],
-    'coffee/src/**/*.js': ['coverage'],
-    'common/js/**/*.js': ['coverage'],
-    'support/js/**/*.js': ['coverage'],
-    'teams/js/**/*.js': ['coverage'],
-    'xmodule_js/common_static/coffee/**/*.js': ['coverage']
-};
+// do not include tests or libraries
+// (these files will be instrumented by Istanbul)
+var preprocessors = (function () {
+    var preprocessFiles = {};
+    _.flatten([sourceFiles, specFiles]).forEach(function (file) {
+        var pattern = _.isObject(file) ? file.pattern : file;
+        preprocessFiles[pattern] = ['coverage'];
+    });
+
+    return preprocessFiles;
+}());
 
 module.exports = function (config) {
     var commonConfig = configModule.getConfig(config),
-        localConfig = {
-            files: files,
-            preprocessors: preprocessors
-        };
+        files = _.flatten([libraryFiles, sourceFiles, specFiles, fixtureFiles, runAndConfigFiles]),
+        localConfig;
+
+    // add nocache in files if coverage is not set
+    if (!config.coverage) {
+        files.forEach(function (f) {
+            if (_.isObject(f)) {
+                f.nocache = true;
+            }
+        });
+    }
+
+    localConfig = {
+        files: files,
+        preprocessors: preprocessors
+    };
 
     config.set(_.extend(commonConfig, localConfig));
 };
diff --git a/lms/static/karma_lms_coffee.conf.js b/lms/static/karma_lms_coffee.conf.js
index dcf4529f8f..163e264714 100644
--- a/lms/static/karma_lms_coffee.conf.js
+++ b/lms/static/karma_lms_coffee.conf.js
@@ -27,7 +27,7 @@ var path = require('path');
 var _ = require('underscore');
 var configModule = require(path.join(__dirname, '../../common/static/common/js/karma.common.conf.js'));
 
-var files = [
+var libraryFiles = [
     // override fixture path and other config.
     {pattern: path.join(configModule.appRoot, 'common/static/common/js/jasmine.common.conf.js'), included: true},
 
@@ -57,34 +57,57 @@ var files = [
     {pattern: 'xmodule_js/src/video/*.js', included: true},
     {pattern: 'xmodule_js/src/xmodule.js', included: true},
     {pattern: 'xmodule_js/common_static/js/vendor/draggabilly.js', included: false},
-
     {pattern: 'xmodule_js/common_static/edx-ui-toolkit/js/utils/global-loader.js', included: true},
     {pattern: 'xmodule_js/common_static/edx-pattern-library/js/modernizr-custom.js', included: false},
     {pattern: 'xmodule_js/common_static/edx-pattern-library/js/afontgarde.js', included: false},
-    {pattern: 'xmodule_js/common_static/edx-pattern-library/js/edx-icons.js', included: false},
-
-    // source files
-    {pattern: 'coffee/src/**/*.js', included: true, nocache: true},
-
-    // spec files
-    {pattern: 'coffee/spec/**/*.js', included: true, nocache: true},
-
-    // Fixtures
-    {pattern: 'coffee/fixtures/**/*.*', included: true, nocache: true}
+    {pattern: 'xmodule_js/common_static/edx-pattern-library/js/edx-icons.js', included: false}
 ];
 
-var preprocessors = {
-    // do not include tests or libraries
-    // (these files will be instrumented by Istanbul)
-    'coffee/src/**/*.js': ['coverage']
-};
+// source files
+var sourceFiles = [
+    {pattern: 'coffee/src/**/*.js', included: true}
+];
+
+// spec files
+var specFiles = [
+    {pattern: 'coffee/spec/**/*.js', included: true}
+];
+
+// Fixtures
+var fixtureFiles = [
+    {pattern: 'coffee/fixtures/**/*.*', included: true}
+];
+
+// do not include tests or libraries
+// (these files will be instrumented by Istanbul)
+var preprocessors = (function () {
+    var preprocessFiles = {};
+    _.flatten([sourceFiles, specFiles]).forEach(function (file) {
+        var pattern = _.isObject(file) ? file.pattern : file;
+        preprocessFiles[pattern] = ['coverage'];
+    });
+
+    return preprocessFiles;
+}());
 
 module.exports = function (config) {
     var commonConfig = configModule.getConfig(config, false),
-        localConfig = {
-            files: files,
-            preprocessors: preprocessors
-        };
+        files = _.flatten([libraryFiles, sourceFiles, specFiles, fixtureFiles]),
+        localConfig;
+
+    // add nocache in files if coverage is not set
+    if (!config.coverage) {
+        files.forEach(function (f) {
+            if (_.isObject(f)) {
+                f.nocache = true;
+            }
+        });
+    }
+
+    localConfig = {
+        files: files,
+        preprocessors: preprocessors
+    };
 
     config.set(_.extend(commonConfig, localConfig));
 };