From d6ca859088f48563d48792158c9312eb5aa36f62 Mon Sep 17 00:00:00 2001
From: "FiveFilters.org" <fivefilters@fivefilters.org>
Date: Thu, 19 Aug 2021 13:49:24 +0200
Subject: Remove aria-hidden="true" nodes

https://github.com/mozilla/readability/commit/60f470c4bb618a7987d5701b1228ec5ff49f2773 (but changes based on current version of Readability.js)
---
 src/Nodes/NodeTrait.php | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'src/Nodes/NodeTrait.php')

diff --git a/src/Nodes/NodeTrait.php b/src/Nodes/NodeTrait.php
index 690c91a..cdd28bf 100644
--- a/src/Nodes/NodeTrait.php
+++ b/src/Nodes/NodeTrait.php
@@ -508,13 +508,14 @@ trait NodeTrait
      * In the original JS project they check if the node has the style display=none, which unfortunately
      * in our case we have no way of knowing that. So we just check for the attribute hidden or "display: none".
      *
-     * Might be a good idea to check for classes or other attributes like 'aria-hidden'
-     *
      * @return bool
      */
     public function isProbablyVisible()
     {
-        return !preg_match('/display:( )?none/', $this->getAttribute('style')) && !$this->hasAttribute('hidden');
+        return !preg_match('/display:( )?none/i', $this->getAttribute('style')) && 
+                !$this->hasAttribute('hidden') &&
+                //check for "fallback-image" so that wikimedia math images are displayed
+                (!$this->hasAttribute('aria-hidden') || $this->getAttribute('aria-hidden') !== 'true' || ($this->hasAttribute('class') && mb_strpos($this->getAttribute('class'), 'fallback-image') !== false));
     }
 
     /**
-- 
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