diff --git a/polygerrit-ui/app/.eslintrc.json b/polygerrit-ui/app/.eslintrc.json
index 0b3febe..8066d26 100644
--- a/polygerrit-ui/app/.eslintrc.json
+++ b/polygerrit-ui/app/.eslintrc.json
@@ -52,6 +52,7 @@
     ],
     "new-cap": ["error", { "capIsNewExceptions": ["Polymer", "LegacyElementMixin", "GestureEventListeners", "LegacyDataMixin"] }],
     "no-console": "off",
+    "no-multiple-empty-lines": [ "error", { "max": 1 } ],
     "no-prototype-builtins": "off",
     "no-redeclare": "off",
     "no-restricted-syntax": [
diff --git a/polygerrit-ui/app/behaviors/gr-admin-nav-behavior/gr-admin-nav-behavior_test.html b/polygerrit-ui/app/behaviors/gr-admin-nav-behavior/gr-admin-nav-behavior_test.html
index 0285e35..90593a2 100644
--- a/polygerrit-ui/app/behaviors/gr-admin-nav-behavior/gr-admin-nav-behavior_test.html
+++ b/polygerrit-ui/app/behaviors/gr-admin-nav-behavior/gr-admin-nav-behavior_test.html
@@ -310,7 +310,6 @@
       });
     });
 
-
     suite('view plugin screen with plugin capability', () => {
       const account = {
         name: 'test-user',
@@ -337,7 +336,6 @@
       });
     });
 
-
     suite('view plugin screen without plugin capability', () => {
       const account = {
         name: 'test-user',
diff --git a/polygerrit-ui/app/elements/admin/gr-access-section/gr-access-section_test.html b/polygerrit-ui/app/elements/admin/gr-access-section/gr-access-section_test.html
index c5fa827..16c654f 100644
--- a/polygerrit-ui/app/elements/admin/gr-access-section/gr-access-section_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-access-section/gr-access-section_test.html
@@ -188,7 +188,6 @@
         assert.isTrue(element.toSortedArray.lastCall.
             calledWithExactly(element.capabilities));
 
-
         // For everything else, include possible label values before filtering.
         name = 'refs/for/*';
         assert.deepEqual(element._computePermissions(name, element.capabilities,
diff --git a/polygerrit-ui/app/elements/admin/gr-admin-view/gr-admin-view.js b/polygerrit-ui/app/elements/admin/gr-admin-view/gr-admin-view.js
index 72cca9e..aa9cb00 100644
--- a/polygerrit-ui/app/elements/admin/gr-admin-view/gr-admin-view.js
+++ b/polygerrit-ui/app/elements/admin/gr-admin-view/gr-admin-view.js
@@ -17,7 +17,6 @@
 (function() {
   'use strict';
 
-
   const INTERNAL_GROUP_REGEX = /^[\da-f]{40}$/;
 
   Polymer({
diff --git a/polygerrit-ui/app/elements/admin/gr-repo-access/gr-repo-access.js b/polygerrit-ui/app/elements/admin/gr-repo-access/gr-repo-access.js
index 18cd790..fc50677 100644
--- a/polygerrit-ui/app/elements/admin/gr-repo-access/gr-repo-access.js
+++ b/polygerrit-ui/app/elements/admin/gr-repo-access/gr-repo-access.js
@@ -67,7 +67,6 @@
    */
   Defs.projectAccessInput;
 
-
   Polymer({
     is: 'gr-repo-access',
 
diff --git a/polygerrit-ui/app/elements/change/gr-change-actions/gr-change-actions_test.html b/polygerrit-ui/app/elements/change/gr-change-actions/gr-change-actions_test.html
index c686127..862b4eb 100644
--- a/polygerrit-ui/app/elements/change/gr-change-actions/gr-change-actions_test.html
+++ b/polygerrit-ui/app/elements/change/gr-change-actions/gr-change-actions_test.html
@@ -1060,7 +1060,6 @@
         element.reload().then(() => { flush(done); });
       });
 
-
       test('unignore button is not outside of the overflow menu', () => {
         assert.isNotOk(element.$$('[data-action-key="unignore"]'));
       });
@@ -1140,7 +1139,6 @@
         element.reload().then(() => { flush(done); });
       });
 
-
       test('unreviewed button not outside of the overflow menu', () => {
         assert.isNotOk(element.$$('[data-action-key="unreviewed"]'));
       });
@@ -1541,7 +1539,6 @@
       element.changeNum = '42';
       element.latestPatchNum = '2';
 
-
       sandbox.stub(element.$.confirmCherrypick.$.restAPI,
           'getRepoBranches').returns(Promise.resolve([]));
       sandbox.stub(element.$.confirmMove.$.restAPI,
diff --git a/polygerrit-ui/app/elements/change/gr-change-view/gr-change-view.js b/polygerrit-ui/app/elements/change/gr-change-view/gr-change-view.js
index a293551..ff63a32 100644
--- a/polygerrit-ui/app/elements/change/gr-change-view/gr-change-view.js
+++ b/polygerrit-ui/app/elements/change/gr-change-view/gr-change-view.js
@@ -1288,7 +1288,6 @@
               this._latestCommitMessage = null;
             }
 
-
             const lineHeight = getComputedStyle(this).lineHeight;
 
             // Slice returns a number as a string, convert to an int.
diff --git a/polygerrit-ui/app/elements/change/gr-change-view/gr-change-view_test.html b/polygerrit-ui/app/elements/change/gr-change-view/gr-change-view_test.html
index e00bab5..a697b1a 100644
--- a/polygerrit-ui/app/elements/change/gr-change-view/gr-change-view_test.html
+++ b/polygerrit-ui/app/elements/change/gr-change-view/gr-change-view_test.html
@@ -1362,7 +1362,6 @@
             '96px');
       });
 
-
       suite('update checks', () => {
         setup(() => {
           sandbox.spy(element, '_startUpdateCheckTimer');
diff --git a/polygerrit-ui/app/elements/change/gr-commit-info/gr-commit-info_test.html b/polygerrit-ui/app/elements/change/gr-commit-info/gr-commit-info_test.html
index f271a70..d3b33d1 100644
--- a/polygerrit-ui/app/elements/change/gr-commit-info/gr-commit-info_test.html
+++ b/polygerrit-ui/app/elements/change/gr-commit-info/gr-commit-info_test.html
@@ -101,7 +101,6 @@
           element.serverConfig), 'https://link-url');
     });
 
-
     test('ignore web links that are neither gitweb nor gitiles', () => {
       const router = document.createElement('gr-router');
       sandbox.stub(Gerrit.Nav, '_generateWeblinks',
diff --git a/polygerrit-ui/app/elements/change/gr-download-dialog/gr-download-dialog.js b/polygerrit-ui/app/elements/change/gr-download-dialog/gr-download-dialog.js
index b297a14..b2e5e63 100644
--- a/polygerrit-ui/app/elements/change/gr-download-dialog/gr-download-dialog.js
+++ b/polygerrit-ui/app/elements/change/gr-download-dialog/gr-download-dialog.js
@@ -125,7 +125,6 @@
           '/patch?' + (opt_zip ? 'zip' : 'download');
     },
 
-
     /**
      * @param {!Object} change
      * @param {number|string} patchNum
diff --git a/polygerrit-ui/app/elements/change/gr-messages-list/gr-messages-list_test.html b/polygerrit-ui/app/elements/change/gr-messages-list/gr-messages-list_test.html
index 315403e..265cee98 100644
--- a/polygerrit-ui/app/elements/change/gr-messages-list/gr-messages-list_test.html
+++ b/polygerrit-ui/app/elements/change/gr-messages-list/gr-messages-list_test.html
@@ -49,7 +49,6 @@
 </test-fixture>
 
 <script>
-
   const randomMessage = function(opt_params) {
     const params = opt_params || {};
     const author1 = {
@@ -517,7 +516,6 @@
       assert.equal(element._getDelta([], messages, false), 1);
       assert.equal(element._getDelta([], messages, true), 1);
 
-
       messages = _.times(7, randomMessage);
       assert.equal(element._getDelta([], messages, false), 5);
       assert.equal(element._getDelta([], messages, true), 5);
diff --git a/polygerrit-ui/app/elements/change/gr-reviewer-list/gr-reviewer-list.js b/polygerrit-ui/app/elements/change/gr-reviewer-list/gr-reviewer-list.js
index 86e76b4..59c9691 100644
--- a/polygerrit-ui/app/elements/change/gr-reviewer-list/gr-reviewer-list.js
+++ b/polygerrit-ui/app/elements/change/gr-reviewer-list/gr-reviewer-list.js
@@ -68,7 +68,6 @@
         computed: '_computeHiddenCount(_reviewers, _displayedReviewers)',
       },
 
-
       // Used for testing.
       _lastAutocompleteRequest: Object,
       _xhrPromise: Object,
diff --git a/polygerrit-ui/app/elements/change/gr-reviewer-list/gr-reviewer-list_test.html b/polygerrit-ui/app/elements/change/gr-reviewer-list/gr-reviewer-list_test.html
index e3601be..ac59235 100644
--- a/polygerrit-ui/app/elements/change/gr-reviewer-list/gr-reviewer-list_test.html
+++ b/polygerrit-ui/app/elements/change/gr-reviewer-list/gr-reviewer-list_test.html
@@ -237,7 +237,6 @@
       assert.isFalse(element.$$('.hiddenReviewers').hidden);
     });
 
-
     test('no maxReviewersDisplayed', () => {
       const reviewers = [];
       for (let i = 0; i < 7; i++) {
diff --git a/polygerrit-ui/app/elements/change/gr-thread-list/gr-thread-list_test.html b/polygerrit-ui/app/elements/change/gr-thread-list/gr-thread-list_test.html
index ff65aa8..e736651 100644
--- a/polygerrit-ui/app/elements/change/gr-thread-list/gr-thread-list_test.html
+++ b/polygerrit-ui/app/elements/change/gr-thread-list/gr-thread-list_test.html
@@ -290,7 +290,6 @@
       assert.equal(element._filteredThreads.includes(thread), true);
     });
 
-
     test('thread removal', () => {
       threadElements[1].fire('thread-discard', {rootId: 'rc2'});
       flushAsynchronousOperations();
diff --git a/polygerrit-ui/app/elements/core/gr-reporting/gr-reporting.js b/polygerrit-ui/app/elements/core/gr-reporting/gr-reporting.js
index ed73055..4c477cb 100644
--- a/polygerrit-ui/app/elements/core/gr-reporting/gr-reporting.js
+++ b/polygerrit-ui/app/elements/core/gr-reporting/gr-reporting.js
@@ -157,7 +157,6 @@
     catchLongJsTasks.observe({entryTypes: ['longtask']});
   }
 
-
   // The Polymer pass of JSCompiler requires this to be reassignable
   // eslint-disable-next-line prefer-const
   let GrReporting = Polymer({
diff --git a/polygerrit-ui/app/elements/core/gr-router/gr-router.js b/polygerrit-ui/app/elements/core/gr-router/gr-router.js
index 6b979e6..7e47912 100644
--- a/polygerrit-ui/app/elements/core/gr-router/gr-router.js
+++ b/polygerrit-ui/app/elements/core/gr-router/gr-router.js
@@ -325,7 +325,6 @@
       return null;
     },
 
-
     _getBrowseCommitWeblink(weblinks, config) {
       if (!weblinks) { return null; }
       let weblink;
@@ -1459,7 +1458,6 @@
       location.reload();
     },
 
-
     /**
      * URL may sometimes have /+/ encoded to / /.
      * Context: Issue 6888, Issue 7100
diff --git a/polygerrit-ui/app/elements/core/gr-smart-search/gr-smart-search_test.html b/polygerrit-ui/app/elements/core/gr-smart-search/gr-smart-search_test.html
index a70eb7c..53036dc 100644
--- a/polygerrit-ui/app/elements/core/gr-smart-search/gr-smart-search_test.html
+++ b/polygerrit-ui/app/elements/core/gr-smart-search/gr-smart-search_test.html
@@ -48,7 +48,6 @@
       sandbox.restore();
     });
 
-
     test('Autocompletes accounts', () => {
       sandbox.stub(element.$.restAPI, 'getSuggestedAccounts', () =>
         Promise.resolve([
diff --git a/polygerrit-ui/app/elements/diff/gr-diff-builder/gr-diff-builder_test.html b/polygerrit-ui/app/elements/diff/gr-diff-builder/gr-diff-builder_test.html
index 3fdf242..56fb8f5 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff-builder/gr-diff-builder_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-diff-builder/gr-diff-builder_test.html
@@ -171,7 +171,6 @@
           '👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍');
     });
 
-
     test('line_length ignored if line_wrapping is true', () => {
       builder._prefs = {line_wrapping: true, tab_size: 4, line_length: 50};
       const text = 'a'.repeat(51);
diff --git a/polygerrit-ui/app/elements/diff/gr-diff-highlight/gr-diff-highlight.js b/polygerrit-ui/app/elements/diff/gr-diff-highlight/gr-diff-highlight.js
index 82c3a8b..4b145c6 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff-highlight/gr-diff-highlight.js
+++ b/polygerrit-ui/app/elements/diff/gr-diff-highlight/gr-diff-highlight.js
@@ -53,7 +53,6 @@
       return this._cachedDiffBuilder;
     },
 
-
     isRangeSelected() {
       return !!this.$$('gr-selection-action-box');
     },
diff --git a/polygerrit-ui/app/elements/diff/gr-diff-host/gr-diff-host_test.html b/polygerrit-ui/app/elements/diff/gr-diff-host/gr-diff-host_test.html
index 88b1e1c..eb0a68d 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff-host/gr-diff-host_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-diff-host/gr-diff-host_test.html
@@ -58,7 +58,6 @@
       sandbox.restore();
     });
 
-
     suite('plugin layers', () => {
       const pluginLayers = [{annotate: () => {}}, {annotate: () => {}}];
       setup(() => {
@@ -1261,7 +1260,6 @@
       assert.equal(threads[0].isOnParent, false);
       assert.equal(threads[0].patchNum, 2);
 
-
       // Try to fetch a thread with a different range.
       range = {
         start_line: 1,
diff --git a/polygerrit-ui/app/elements/diff/gr-diff-processor/gr-diff-processor.js b/polygerrit-ui/app/elements/diff/gr-diff-processor/gr-diff-processor.js
index 58cc46f..b67bde3 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff-processor/gr-diff-processor.js
+++ b/polygerrit-ui/app/elements/diff/gr-diff-processor/gr-diff-processor.js
@@ -150,7 +150,6 @@
       // so finish processing.
       if (isBinary) { return Promise.resolve(); }
 
-
       this._processPromise = util.makeCancelable(
           new Promise(resolve => {
             const state = {
@@ -413,7 +412,6 @@
       return new GrDiffGroup(GrDiffGroup.Type.BOTH, [line]);
     },
 
-
     /**
      * Split chunks into smaller chunks of the same kind.
      *
diff --git a/polygerrit-ui/app/elements/diff/gr-diff-selection/gr-diff-selection_test.html b/polygerrit-ui/app/elements/diff/gr-diff-selection/gr-diff-selection_test.html
index 0f5c6dd..9385658 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff-selection/gr-diff-selection_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-diff-selection/gr-diff-selection_test.html
@@ -375,7 +375,6 @@
             'his is a differ');
       });
 
-
       test('multi level element as startContainer of range', () => {
         range.setStart(nodes[2].childNodes[1], 0);
         range.setEnd(nodes[2].childNodes[2], 7);
diff --git a/polygerrit-ui/app/elements/diff/gr-diff/gr-diff-group.js b/polygerrit-ui/app/elements/diff/gr-diff/gr-diff-group.js
index 7c42fa2..6bd4f55 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff/gr-diff-group.js
+++ b/polygerrit-ui/app/elements/diff/gr-diff/gr-diff-group.js
@@ -79,7 +79,6 @@
     DELTA: 'delta',
   };
 
-
   /**
    * Hides lines in the given range behind a context control group.
    *
diff --git a/polygerrit-ui/app/elements/diff/gr-diff/gr-diff_test.html b/polygerrit-ui/app/elements/diff/gr-diff/gr-diff_test.html
index ec2f5f1..52a29f9 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff/gr-diff_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-diff/gr-diff_test.html
@@ -76,7 +76,6 @@
       });
     });
 
-
     test('cancel', () => {
       element = fixture('basic');
       const cancelStub = sandbox.stub(element.$.diffBuilder, 'cancel');
@@ -868,7 +867,6 @@
           assert.isNull(element._lastChunkForSide(diff, true));
         });
 
-
         test('deletion with b undefined', () => {
           const diff = {content: [
             {a: ['foo', 'bar', 'baz']},
diff --git a/polygerrit-ui/app/elements/diff/gr-patch-range-select/gr-patch-range-select.js b/polygerrit-ui/app/elements/diff/gr-patch-range-select/gr-patch-range-select.js
index 2dae7ed..52a107d 100644
--- a/polygerrit-ui/app/elements/diff/gr-patch-range-select/gr-patch-range-select.js
+++ b/polygerrit-ui/app/elements/diff/gr-patch-range-select/gr-patch-range-select.js
@@ -216,7 +216,6 @@
           this.findSortedIndex(patchNum, sortedRevisions);
     },
 
-
     _computePatchSetCommentsString(changeComments, patchNum) {
       if (!changeComments) { return; }
 
diff --git a/polygerrit-ui/app/elements/plugins/gr-styles-api/gr-styles-api.js b/polygerrit-ui/app/elements/plugins/gr-styles-api/gr-styles-api.js
index 7aca389..c149ebe 100644
--- a/polygerrit-ui/app/elements/plugins/gr-styles-api/gr-styles-api.js
+++ b/polygerrit-ui/app/elements/plugins/gr-styles-api/gr-styles-api.js
@@ -62,7 +62,6 @@
     element.classList.add(this.getClassName(element));
   };
 
-
   function GrStylesApi() {
   }
 
@@ -75,6 +74,5 @@
     return new GrStyleObject(ruleStr);
   };
 
-
   window.GrStylesApi = GrStylesApi;
 })(window);
diff --git a/polygerrit-ui/app/elements/plugins/gr-styles-api/gr-styles-api_test.html b/polygerrit-ui/app/elements/plugins/gr-styles-api/gr-styles-api_test.html
index 46bda6d..16b7eb8 100644
--- a/polygerrit-ui/app/elements/plugins/gr-styles-api/gr-styles-api_test.html
+++ b/polygerrit-ui/app/elements/plugins/gr-styles-api/gr-styles-api_test.html
@@ -105,7 +105,6 @@
       return [element1, element2, element3];
     }
 
-
     test('getClassName  - body level elements', () => {
       const bodyLevelElements = createNestedElements(document.body);
 
@@ -161,7 +160,6 @@
       assertDisplayPropertyValues(elements, ['inline', 'none', 'inline']);
     }
 
-
     function assertAllElementsHaveDefaultStyle(elements) {
       for (const element of elements) {
         assert.equal(getComputedStyle(element).getPropertyValue('display'),
diff --git a/polygerrit-ui/app/elements/shared/gr-account-list/gr-account-list_test.html b/polygerrit-ui/app/elements/shared/gr-account-list/gr-account-list_test.html
index f931a69..202ddf6 100644
--- a/polygerrit-ui/app/elements/shared/gr-account-list/gr-account-list_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-account-list/gr-account-list_test.html
@@ -187,7 +187,6 @@
         };
       });
 
-
       element._getSuggestions().then(suggestions => {
         // Default is no filtering.
         assert.equal(suggestions.length, 3);
@@ -225,7 +224,6 @@
       assert.isFalse(element._computeRemovable(existingAccount1, false));
       assert.isTrue(element._computeRemovable(newAccount, false));
 
-
       element.removableValues = [existingAccount1];
       assert.isTrue(element._computeRemovable(existingAccount1, false));
       assert.isTrue(element._computeRemovable(newAccount, false));
diff --git a/polygerrit-ui/app/elements/shared/gr-comment/gr-comment_test.html b/polygerrit-ui/app/elements/shared/gr-comment/gr-comment_test.html
index c829343..560f9fa 100644
--- a/polygerrit-ui/app/elements/shared/gr-comment/gr-comment_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-comment/gr-comment_test.html
@@ -44,7 +44,6 @@
 </test-fixture>
 
 <script>
-
   function isVisible(el) {
     assert.ok(el);
     return getComputedStyle(el).getPropertyValue('display') !== 'none';
diff --git a/polygerrit-ui/app/elements/shared/gr-cursor-manager/gr-cursor-manager_test.html b/polygerrit-ui/app/elements/shared/gr-cursor-manager/gr-cursor-manager_test.html
index 0793ccd..b51e44c 100644
--- a/polygerrit-ui/app/elements/shared/gr-cursor-manager/gr-cursor-manager_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-cursor-manager/gr-cursor-manager_test.html
@@ -129,7 +129,6 @@
       assert.equal(element.index, -1);
     });
 
-
     test('_moveCursor', () => {
       // Initialize the cursor with its stops.
       element.stops = list.querySelectorAll('li');
diff --git a/polygerrit-ui/app/elements/shared/gr-dropdown-list/gr-dropdown-list_test.html b/polygerrit-ui/app/elements/shared/gr-dropdown-list/gr-dropdown-list_test.html
index 2b63d99..10378b1 100644
--- a/polygerrit-ui/app/elements/shared/gr-dropdown-list/gr-dropdown-list_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-dropdown-list/gr-dropdown-list_test.html
@@ -117,7 +117,6 @@
         // Since no mobile specific text, it should fall back to text.
         assert.equal(mobileItems[0].text, element.items[0].text);
 
-
         // Second Item
         // The second item should have top text, bottom text, and no date.
         assert.isFalse(!!items[1].disabled);
diff --git a/polygerrit-ui/app/elements/shared/gr-editable-label/gr-editable-label_test.html b/polygerrit-ui/app/elements/shared/gr-editable-label/gr-editable-label_test.html
index 7ff0a14..416a499 100644
--- a/polygerrit-ui/app/elements/shared/gr-editable-label/gr-editable-label_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-editable-label/gr-editable-label_test.html
@@ -166,7 +166,6 @@
       MockInteractions.tap(element.$.saveBtn, 13);
     });
 
-
     test('edit and then escape key', done => {
       const editedStub = sandbox.stub();
       element.addEventListener('changed', editedStub);
diff --git a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-api-utils.js b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-api-utils.js
index 4123f70..2d66cfa 100644
--- a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-api-utils.js
+++ b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-api-utils.js
@@ -90,7 +90,6 @@
     });
   }
 
-
   // TEST only methods / properties
 
   function testOnly_resetInternalState() {
diff --git a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-api-utils_test.html b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-api-utils_test.html
index c407aa8..89dfbd7 100644
--- a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-api-utils_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-api-utils_test.html
@@ -29,7 +29,6 @@
 <script>void(0);</script>
 
 <script>
-
   const PRELOADED_PROTOCOL = 'preloaded:';
 
   suite('gr-api-utils tests', () => {
diff --git a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-loader_test.html b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-loader_test.html
index ee54319..b0a8c4a 100644
--- a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-loader_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-loader_test.html
@@ -367,7 +367,6 @@
         );
       });
 
-
       test('relative path should honor getBaseUrl', () => {
         const testUrl = '/test';
         sandbox.stub(Gerrit.BaseUrlBehavior, 'getBaseUrl', () => {
diff --git a/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-rest-api-interface_test.html b/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-rest-api-interface_test.html
index 1781ce7..9f01f48 100644
--- a/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-rest-api-interface_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-rest-api-interface_test.html
@@ -351,7 +351,6 @@
       });
     });
 
-
     test('server error', done => {
       const getResponseObjectStub = sandbox.stub(element, 'getResponseObject');
       window.fetch.returns(Promise.resolve({ok: false}));
diff --git a/polygerrit-ui/app/samples/coverage-plugin.html b/polygerrit-ui/app/samples/coverage-plugin.html
index d1d96a8..e4c23aa 100644
--- a/polygerrit-ui/app/samples/coverage-plugin.html
+++ b/polygerrit-ui/app/samples/coverage-plugin.html
@@ -1,6 +1,5 @@
 <dom-module id="coverage-plugin">
   <script>
-
     function populateWithDummyData(coverageData) {
       coverageData['NewFile'] = {
         linesMissingCoverage: [1, 2, 3],
diff --git a/polygerrit-ui/app/scripts/gr-display-name-utils/gr-display-name-utils_test.html b/polygerrit-ui/app/scripts/gr-display-name-utils/gr-display-name-utils_test.html
index 25ca4c5..b04e324 100644
--- a/polygerrit-ui/app/scripts/gr-display-name-utils/gr-display-name-utils_test.html
+++ b/polygerrit-ui/app/scripts/gr-display-name-utils/gr-display-name-utils_test.html
@@ -35,7 +35,6 @@
       },
     };
 
-
     test('getUserName name only', () => {
       const account = {
         name: 'test-name',