diff --git a/test/features/index.html b/test/features/index.html
index 1c3639392cfb1..3ae63fcc5e694 100644
--- a/test/features/index.html
+++ b/test/features/index.html
@@ -54,7 +54,7 @@ <h1>Required Features for PDF.js</h1>
     <div id="plusfontusage" style="font-family: plus; visibility: hidden;">`</div>
 
     <script>
-    var wikiPageBase = 'https://github.com/mozilla/pdf.js/wiki/Required-Browser-Features#wiki-';
+    var wikiPageBase = 'https://github.com/mozilla/pdf.js/wiki/Required-Browser-Features#user-content-';
     var output = document.getElementById('output');
     // for some browser textContent is absent using innerHTML :/
     for (var i = 0; i < tests.length; i++) {
diff --git a/test/features/tests.js b/test/features/tests.js
index 3c0b60c32d4a6..af9d5b8de3291 100644
--- a/test/features/tests.js
+++ b/test/features/tests.js
@@ -484,18 +484,6 @@ var tests = [
     impact: 'Important',
     area: 'Core'
   },
-  {
-    id: 'TextDecoder',
-    name: 'TextDecoder is present',
-    run: function () {
-      if (typeof TextDecoder != 'undefined')
-        return { output: 'Success', emulated: '' };
-      else
-        return { output: 'Failed', emulated: 'No' };
-    },
-    impact: 'Critical',
-    area: 'Core'
-  },
   {
     id: 'Worker',
     name: 'Worker is present',
@@ -604,46 +592,6 @@ var tests = [
     impact: 'Important',
     area: 'Core'
   },
-  {
-    id: 'Worker-TextDecoder',
-    name: 'TextDecoder is present in web workers',
-    run: function () {
-      if (typeof Worker == 'undefined')
-        return { output: 'Skipped', emulated: '' };
-
-      var emulatable = typeof TextDecoder !== 'undefined';
-      try {
-        var worker = new Worker('worker-stub.js');
-
-        var promise = new Promise();
-        var timeout = setTimeout(function () {
-          promise.resolve({ output: 'Failed',
-                            emulated: emulatable ? '?' : 'No' });
-        }, 5000);
-
-        worker.addEventListener('message', function (e) {
-          var data = e.data;
-          if (data.action === 'TextDecoder') {
-            if (data.result) {
-              promise.resolve({ output: 'Success', emulated: '' });
-            } else {
-              promise.resolve({ output: 'Failed',
-                                emulated: data.emulated ? 'Yes' : 'No' });
-            }
-          } else {
-            promise.resolve({ output: 'Failed',
-                              emulated: emulatable ? 'Yes' : 'No' });
-          }
-        }, false);
-        worker.postMessage({action: 'TextDecoder'});
-        return promise;
-      } catch (e) {
-        return { output: 'Failed', emulated: emulatable ? 'Yes' : 'No' };
-      }
-    },
-    impact: 'Important',
-    area: 'Core'
-  },
   {
     id: 'Canvas Blend Mode',
     name: 'Canvas supports extended blend modes',
diff --git a/test/features/worker-stub.js b/test/features/worker-stub.js
index 6dc01f9fa6112..2a1306ed37f0f 100644
--- a/test/features/worker-stub.js
+++ b/test/features/worker-stub.js
@@ -35,11 +35,6 @@ onmessage = function (e) {
     }
     postMessage({action: 'xhr', result: responseExists});
     break;
-  case 'TextDecoder':
-    postMessage({action: 'TextDecoder',
-                 result: typeof TextDecoder !== 'undefined',
-                 emulated: typeof FileReaderSync !== 'undefined'});
-    break;
   }
 };