Use document.head instead of getElementByTagName

examples/vector-labels.js

@@ -107,7 +107,7 @@ const createTextStyle = function (feature, resolution, dom) {
     const openSans = document.createElement('link');
     openSans.href = 'https://fonts.googleapis.com/css?family=Open+Sans';
     openSans.rel = 'stylesheet';
-    document.getElementsByTagName('head')[0].appendChild(openSans);
+    document.head.appendChild(openSans);
     openSansAdded = true;
   }
   const font = weight + ' ' + size + '/' + height + ' ' + dom.font.value;

src/ol/net.js

@@ -39,7 +39,7 @@ export function jsonp(url, callback, opt_errback, opt_callbackParam) {
     cleanup();
     callback(data);
   };
-  document.getElementsByTagName('head')[0].appendChild(script);
+  document.head.appendChild(script);
 }
 
 export class ResponseError extends Error {

test/browser/spec/ol/net.test.js

@@ -36,7 +36,7 @@ describe('ol/net', function () {
   });
 
   describe('jsonp()', function () {
-    const head = document.getElementsByTagName('head')[0];
+    const head = document.head;
     const origAppendChild = head.appendChild;
     const origCreateElement = document.createElement;
     const origSetTimeout = setTimeout;

test/browser/spec/ol/render/canvas/index.test.js

@@ -5,7 +5,6 @@ describe('ol.render.canvas', function () {
   font.href =
     'https://fonts.googleapis.com/css?family=Abel&text=wmytzilWMYTZIL%40%23%2F%26%3F%24%2510';
   font.rel = 'stylesheet';
-  const head = document.getElementsByTagName('head')[0];
 
   describe('ol.render.canvas.registerFont()', function () {
     beforeEach(function () {
@@ -65,7 +64,7 @@ describe('ol.render.canvas', function () {
     });
 
     it('triggers redraw and clear measurements for fonts that become available', function (done) {
-      head.appendChild(font);
+      document.head.appendChild(font);
       render.checkedFonts.addEventListener(
         'propertychange',
         function onPropertyChange(e) {
@@ -75,6 +74,8 @@ describe('ol.render.canvas', function () {
           );
           expect(e.key).to.be('normal\nnormal\nAbel');
           expect(render.textHeights).to.eql({});
+
+          document.head.removeChild(font);
           done();
         }
       );

test/browser/spec/ol/renderer/canvas/vectorlayer.test.js

@@ -23,7 +23,6 @@ import {get as getProjection} from '../../../../../../src/ol/proj.js';
 
 describe('ol.renderer.canvas.VectorLayer', function () {
   describe('constructor', function () {
-    const head = document.getElementsByTagName('head')[0];
     const font = document.createElement('link');
     font.href = 'https://fonts.googleapis.com/css?family=Droid+Sans';
     font.rel = 'stylesheet';
@@ -156,7 +155,7 @@ describe('ol.renderer.canvas.VectorLayer', function () {
 
     it('re-renders for fonts that become available', function (done) {
       checkedFonts.values_ = {};
-      head.appendChild(font);
+      document.head.appendChild(font);
       const map = new Map({
         view: new View({
           center: [0, 0],
@@ -182,7 +181,7 @@ describe('ol.renderer.canvas.VectorLayer', function () {
       const revision = layer.getRevision();
       setTimeout(function () {
         expect(layer.getRevision()).to.be(revision + 1);
-        head.removeChild(font);
+        document.head.removeChild(font);
         done();
       }, 1600);
     });

test/browser/spec/ol/renderer/canvas/vectortilelayer.test.js

@@ -24,7 +24,6 @@ import {getUid} from '../../../../../../src/ol/util.js';
 
 describe('ol/renderer/canvas/VectorTileLayer', function () {
   describe('constructor', function () {
-    const head = document.getElementsByTagName('head')[0];
     const font = document.createElement('link');
     font.href = 'https://fonts.googleapis.com/css?family=Dancing+Script';
     font.rel = 'stylesheet';
@@ -200,12 +199,12 @@ describe('ol/renderer/canvas/VectorTileLayer', function () {
     it('re-renders for fonts that become available', function (done) {
       map.renderSync();
       checkedFonts.values_ = {};
-      head.appendChild(font);
+      document.head.appendChild(font);
       layerStyle[0].getText().setFont('12px "Dancing Script",sans-serif');
       layer.changed();
       const revision = layer.getRevision();
       setTimeout(function () {
-        head.removeChild(font);
+        document.head.removeChild(font);
         expect(layer.getRevision()).to.be(revision + 1);
         done();
       }, 1600);