:arrow_up: Update HTML Purifier library.

Updated HTML Purifier from 4.6.0 to 4.9.2 with better PHP7 compatibility.
Used composer to manage this library.

1 files changed, 0 insertions, 28 deletions

diff --git a/library/HTMLPurifier/AttrTransform/Background.php b/library/HTMLPurifier/AttrTransform/Background.php
deleted file mode 100644
index 2f72869a5..000000000
--- a/library/HTMLPurifier/AttrTransform/Background.php
+++ /dev/null
@@ -1,28 +0,0 @@
-<?php
-
-/**
- * Pre-transform that changes proprietary background attribute to CSS.
- */
-class HTMLPurifier_AttrTransform_Background extends HTMLPurifier_AttrTransform
-{
-    /**
-     * @param array $attr
-     * @param HTMLPurifier_Config $config
-     * @param HTMLPurifier_Context $context
-     * @return array
-     */
-    public function transform($attr, $config, $context)
-    {
-        if (!isset($attr['background'])) {
-            return $attr;
-        }
-
-        $background = $this->confiscateAttr($attr, 'background');
-        // some validation should happen here
-
-        $this->prependCSS($attr, "background-image:url($background);");
-        return $attr;
-    }
-}
-
-// vim: et sw=4 sts=4