diff --git a/integration/angular_cli/karma.conf.js b/integration/angular_cli/karma.conf.js
index a9c5297de149..646bfde5c8a6 100644
--- a/integration/angular_cli/karma.conf.js
+++ b/integration/angular_cli/karma.conf.js
@@ -18,6 +18,9 @@ module.exports = function (config) {
     client: {
       clearContext: false, // leave Jasmine Spec Runner output visible in browser
     },
+    jasmineHtmlReporter: {
+      suppressAll: true // removes the duplicated traces
+    },
     coverageReporter: {
       dir: path.join(__dirname, 'coverage'),
       subdir: '.',
diff --git a/packages/angular_devkit/build_angular/test/hello-world-app/karma.conf.js b/packages/angular_devkit/build_angular/test/hello-world-app/karma.conf.js
index 9e73f21d849a..1b6b10b70e7c 100644
--- a/packages/angular_devkit/build_angular/test/hello-world-app/karma.conf.js
+++ b/packages/angular_devkit/build_angular/test/hello-world-app/karma.conf.js
@@ -25,6 +25,9 @@ module.exports = function(config) {
     client: {
       clearContext: false, // leave Jasmine Spec Runner output visible in browser
     },
+    jasmineHtmlReporter: {
+      suppressAll: true // removes the duplicated traces
+    },
     coverageReporter: {
       dir: path.join(__dirname, './coverage'),
       subdir: '.',
diff --git a/packages/angular_devkit/build_angular/test/hello-world-lib/projects/lib/karma.conf.js b/packages/angular_devkit/build_angular/test/hello-world-lib/projects/lib/karma.conf.js
index 2f49ecb6df61..80b89d8439ac 100644
--- a/packages/angular_devkit/build_angular/test/hello-world-lib/projects/lib/karma.conf.js
+++ b/packages/angular_devkit/build_angular/test/hello-world-lib/projects/lib/karma.conf.js
@@ -22,6 +22,9 @@ module.exports = function (config) {
     client: {
       clearContext: false // leave Jasmine Spec Runner output visible in browser
     },
+    jasmineHtmlReporter: {
+      suppressAll: true // removes the duplicated traces
+    },
     coverageIstanbulReporter: {
       dir: require('path').join(__dirname, 'coverage'),
       reports: ['html', 'lcovonly'],
diff --git a/packages/schematics/angular/application/files/karma.conf.js.template b/packages/schematics/angular/application/files/karma.conf.js.template
index 9d541c810afa..8c012eef5745 100644
--- a/packages/schematics/angular/application/files/karma.conf.js.template
+++ b/packages/schematics/angular/application/files/karma.conf.js.template
@@ -15,6 +15,9 @@ module.exports = function (config) {
     client: {
       clearContext: false // leave Jasmine Spec Runner output visible in browser
     },
+    jasmineHtmlReporter: {
+      suppressAll: true // removes the duplicated traces
+    },
     coverageReporter: {
       dir: require('path').join(__dirname, '<%= relativePathToWorkspaceRoot %>/coverage/<%= appName%>'),
       subdir: '.',
diff --git a/packages/schematics/angular/library/files/karma.conf.js.template b/packages/schematics/angular/library/files/karma.conf.js.template
index 5b7c002e406d..7d8d58d39315 100644
--- a/packages/schematics/angular/library/files/karma.conf.js.template
+++ b/packages/schematics/angular/library/files/karma.conf.js.template
@@ -15,6 +15,9 @@ module.exports = function (config) {
     client: {
       clearContext: false // leave Jasmine Spec Runner output visible in browser
     },
+    jasmineHtmlReporter: {
+      suppressAll: true // removes the duplicated traces
+    },
     coverageReporter: {
       dir: require('path').join(__dirname, '<%= relativePathToWorkspaceRoot %>/coverage/<%= folderName %>'),
       subdir: '.',