From eb0e4110a84c0126f40f1e1b61205357d77d412a Mon Sep 17 00:00:00 2001
From: Adrian Vollmer <computerfluesterer@protonmail.com>
Date: Mon, 10 Oct 2022 17:41:55 +0200
Subject: [PATCH] Fix anchor links

---
 zundler/assets/init.js   | 7 +++----
 zundler/assets/inject.js | 6 ++++++
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/zundler/assets/init.js b/zundler/assets/init.js
index fdd42d2..1a00e2c 100644
--- a/zundler/assets/init.js
+++ b/zundler/assets/init.js
@@ -59,15 +59,14 @@ var load_virtual_page = (function (path, get_params, anchor) {
     // return True if it worked
     // return False if loading indicator should be removed right away
     const file = window.global_context.file_tree[path];
-    const data = file.data;
     var iframe = createIframe();
+
+    const data = file.data;
     window.global_context.get_parameters = get_params;
     if (file.mime_type == 'text/html') {
         iframe.setAttribute("srcdoc", data);
-        if (anchor) {
-            iframe.contentDocument.location.hash = anchor;
-        }
         window.global_context.current_path = path;
+        window.global_context.anchor = anchor;
         window.history.pushState({path, get_params, anchor}, '', '#');
         return true;
     } else {
diff --git a/zundler/assets/inject.js b/zundler/assets/inject.js
index b6d3a50..b8ae326 100644
--- a/zundler/assets/inject.js
+++ b/zundler/assets/inject.js
@@ -64,6 +64,7 @@ var virtual_click = function(evnt) {
     } else {
         console.error("Invalid element", el);
     }
+
     path = normalize_path(path);
 
     window.parent.postMessage({
@@ -88,6 +89,8 @@ var fix_links = function() {
 var fix_link = function(a) {
     if (is_virtual(a.getAttribute('href'))) {
         a.addEventListener('click', virtual_click);
+    } else if (a.getAttribute('href').startsWith('#')) {
+        a.setAttribute('href', "about:srcdoc" + a.getAttribute('href'))
     }
 };
 
@@ -210,6 +213,9 @@ window.addEventListener("message", (evnt) => {
                 argument: "",
             }, '*');
         }
+        if (window.global_context.anchor) {
+            document.location.href = "about:srcdoc#" + window.global_context.anchor;
+        }
     }
 }, false);