diff --git a/src/index.js b/src/index.js
index 91c9cc6..83494ee 100644
--- a/src/index.js
+++ b/src/index.js
@@ -32,3 +32,46 @@ document.addEventListener('DOMContentLoaded', () => {
     );
   }
 });
+
+// Persist #settings across links to same page
+window.addEventListener('click', function (ev) {
+  if (window.location.hash.length == 0) {
+    return true;
+  }
+  if (ev.altKey || ev.ctrlKey || ev.metaKey || ev.shiftKey || ev.defaultPrevented) {
+    return true;
+  }
+  var a = null;
+  for (var n = ev.target; n.parentNode; n = n.parentNode) {
+    if (n.nodeName === 'A') {
+      a = n;
+      break;
+    }
+  }
+  if (!a || !a.href) {
+    return true;
+  }
+  // This expands the full URL even if the link is /relative:
+  var href = a.href;
+  // Split off any existing #fragment
+  href = href.split('#')[0];
+  // Only activate if link is to current page (presumably with different querystring)
+  var currentHostAndPath = window.location.hostname;
+  if (window.location.port !== '') {
+    currentHostAndPath += ':' + window.location.port;
+  }
+  currentHostAndPath += window.location.pathname;
+  // Ignore http/s due to https://github.com/simonw/datasette/issues/333
+  var linkedHostQuery = href.split('?')[1];
+  var linkedHostAndPath = href.split('://')[1].split('?')[0];
+  if (currentHostAndPath == linkedHostAndPath) {
+    // Cancel click, navigate to this + fragment instead
+    if (linkedHostQuery) {
+      linkedHostAndPath += '?' + linkedHostQuery;
+    }
+    ev.preventDefault();
+    window.location = window.location.protocol + '//' + linkedHostAndPath + window.location.hash;
+    return false;
+  }
+  return true;
+});