diff -u b/composer.lock b/composer.lock
--- b/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at http://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "hash": "6d6627f7fac24aa6725ffcd8fc7c0eb5",
+    "hash": "4378dea31ef5185651bc10bd9a40e591",
     "packages": [
         {
             "name": "doctrine/annotations",
diff -u b/core/modules/filter/src/Plugin/Filter/FilterHtmlCorrector.php b/core/modules/filter/src/Plugin/Filter/FilterHtmlCorrector.php
--- b/core/modules/filter/src/Plugin/Filter/FilterHtmlCorrector.php
+++ b/core/modules/filter/src/Plugin/Filter/FilterHtmlCorrector.php
@@ -29,7 +29,7 @@
    */
   public function process($text, $langcode) {
     $html5 = new HTML5();
-    $html_dom = $html5->loadHTML($text);
+    $html_dom = $html5->loadHTMLFragment($text);
     $text = $html5->saveHTML($html_dom);
     return new FilterProcessResult($text);
   }
interdiff impossible; taking evasive action
reverted:
--- b/core/vendor/composer/installed.json
+++ a/core/vendor/composer/installed.json
@@ -2645,72 +2645,5 @@
             "feed",
             "zf2"
         ]
-    },
-    {
-        "name": "masterminds/html5",
-        "version": "2.0.1",
-        "version_normalized": "2.0.1.0",
-        "source": {
-            "type": "git",
-            "url": "https://github.com/Masterminds/html5-php.git",
-            "reference": "e1e579a69254e8e20d6270b5c13c4475f8461438"
-        },
-        "dist": {
-            "type": "zip",
-            "url": "https://api.github.com/repos/Masterminds/html5-php/zipball/e1e579a69254e8e20d6270b5c13c4475f8461438",
-            "reference": "e1e579a69254e8e20d6270b5c13c4475f8461438",
-            "shasum": ""
-        },
-        "require": {
-            "ext-libxml": "*",
-            "php": ">=5.3.0"
-        },
-        "require-dev": {
-            "phpunit/phpunit": "4.*",
-            "sami/sami": "~2.0",
-            "satooshi/php-coveralls": "0.6.*"
-        },
-        "time": "2014-09-23 09:49:02",
-        "type": "library",
-        "extra": {
-            "branch-alias": {
-                "dev-master": "2.0-dev"
-            }
-        },
-        "installation-source": "dist",
-        "autoload": {
-            "psr-4": {
-                "Masterminds\\": "src"
-            }
-        },
-        "notification-url": "https://packagist.org/downloads/",
-        "license": [
-            "MIT"
-        ],
-        "authors": [
-            {
-                "name": "Matt Butcher",
-                "email": "technosophos@gmail.com"
-            },
-            {
-                "name": "Asmir Mustafic",
-                "email": "goetas@gmail.com"
-            },
-            {
-                "name": "Matt Farina",
-                "email": "matt@mattfarina.com"
-            }
-        ],
-        "description": "An HTML5 parser and serializer.",
-        "homepage": "http://masterminds.github.io/html5-php",
-        "keywords": [
-            "HTML5",
-            "dom",
-            "html",
-            "parser",
-            "querypath",
-            "serializer",
-            "xml"
-        ]
     }
 ]
unchanged:
--- a/core/vendor/composer/installed.json
+++ b/core/vendor/composer/installed.json
@@ -2601,5 +2601,72 @@
                 "homepage": "https://github.com/mtdowling"
             }
         ]
+    },
+    {
+        "name": "masterminds/html5",
+        "version": "2.0.1",
+        "version_normalized": "2.0.1.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/Masterminds/html5-php.git",
+            "reference": "e1e579a69254e8e20d6270b5c13c4475f8461438"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/Masterminds/html5-php/zipball/e1e579a69254e8e20d6270b5c13c4475f8461438",
+            "reference": "e1e579a69254e8e20d6270b5c13c4475f8461438",
+            "shasum": ""
+        },
+        "require": {
+            "ext-libxml": "*",
+            "php": ">=5.3.0"
+        },
+        "require-dev": {
+            "phpunit/phpunit": "4.*",
+            "sami/sami": "~2.0",
+            "satooshi/php-coveralls": "0.6.*"
+        },
+        "time": "2014-09-23 09:49:02",
+        "type": "library",
+        "extra": {
+            "branch-alias": {
+                "dev-master": "2.0-dev"
+            }
+        },
+        "installation-source": "dist",
+        "autoload": {
+            "psr-4": {
+                "Masterminds\\": "src"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "MIT"
+        ],
+        "authors": [
+            {
+                "name": "Matt Butcher",
+                "email": "technosophos@gmail.com"
+            },
+            {
+                "name": "Asmir Mustafic",
+                "email": "goetas@gmail.com"
+            },
+            {
+                "name": "Matt Farina",
+                "email": "matt@mattfarina.com"
+            }
+        ],
+        "description": "An HTML5 parser and serializer.",
+        "homepage": "http://masterminds.github.io/html5-php",
+        "keywords": [
+            "HTML5",
+            "dom",
+            "html",
+            "parser",
+            "querypath",
+            "serializer",
+            "xml"
+        ]
     }
 ]