Make sure all browsers can scroll to permalinks

js/script.js

@@ -5,15 +5,39 @@ function hasElementNodes (parent) {
     return false;
 }
 
-window.addEventListener('load', function () {
+/*
+ * On some browsers that do not support `disable-output-escaping` in XSLTs,
+ * the XSLT that renders RSRSSS may be outputting HTML tags that are still escaped.
+ * If the browser supports JavaScript, this function offers a last chance:
+ * if no post has any HTML tags, only text, then it assumes escaping failed
+ * and does the unescaping through a hidden textarea.
+ */
+function forceUnescape() {
     var escaped = document.getElementsByClassName('unescape');
     for (var i = 0; i < escaped.length; i++) {
         if (hasElementNodes(escaped[i])) return;
     }
+
     var textarea = document.createElement('textarea');
     for (var i = escaped.length - 1; i >= 0; i--) {
         textarea.innerHTML = escaped[i].innerHTML;
         escaped[i].outerHTML = textarea.value;
     }
     textarea.innerHTML = '';
-});
+}
+
+window.addEventListener('load', function () {
+    forceUnescape();
+
+    /*
+     * Unescaping is very likely to mess with the browser's ability to scroll to
+     * an element by ID through hashes in URLs.
+     * Some browsers might also not support scrolling to an element after processing an XSLT.
+     * Just in case, if there is a URL hash, we try to find an element and scroll to it.
+     * If the window was already scrolled, do nothing.
+     */
+    if (window.location.hash && window.location.hash.slice(1).length && window.scrollY === 0) {
+        var element = document.getElementById(window.location.hash.slice(1))
+        if (element) element.scrollIntoView()
+    }
+});