From f06e165bd42f69a3f50677fe046bdbebd945937e Mon Sep 17 00:00:00 2001
From: ed <s@ocv.me>
Date: Sat, 18 Sep 2021 02:07:09 +0200
Subject: [PATCH] retro

---
 README.md             |  2 +-
 copyparty/web/md.js   | 15 ++++++++++++---
 copyparty/web/util.js |  3 +++
 3 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index 2323fce6..fbd7a5a1 100644
--- a/README.md
+++ b/README.md
@@ -722,7 +722,7 @@ TLDR: yes
 | image viewer    |  -  | yep  | yep  | yep  |  yep  | yep  | yep | yep  |
 | video player    |  -  | yep  | yep  | yep  |  yep  | yep  | yep | yep  |
 | markdown editor |  -  |  -   | yep  | yep  |  yep  | yep  | yep | yep  |
-| markdown viewer |  -  |  -   | yep  | yep  |  yep  | yep  | yep | yep  |
+| markdown viewer |  -  | yep  | yep  | yep  |  yep  | yep  | yep | yep  |
 | play mp3/m4a    |  -  | yep  | yep  | yep  |  yep  | yep  | yep | yep  |
 | play ogg/opus   |  -  |  -   |  -   |  -   |  yep  | yep  | `*3` | yep |
 | **= feature =** | ie6 | ie9  | ie10 | ie11 | ff 52 | c 49 | iOS | Andr |
diff --git a/copyparty/web/md.js b/copyparty/web/md.js
index d55d92d3..35a96a1f 100644
--- a/copyparty/web/md.js
+++ b/copyparty/web/md.js
@@ -267,7 +267,14 @@ function convert_markdown(md_text, dest_dom) {
 
         throw ex;
     }
-    var md_dom = new DOMParser().parseFromString(md_html, "text/html").body;
+    var md_dom = dest_dom;
+    try {
+        md_dom = new DOMParser().parseFromString(md_html, "text/html").body;
+    }
+    catch (ex) {
+        md_dom.innerHTML = md_html;
+        window.copydom = noop;
+    }
 
     var nodes = md_dom.getElementsByTagName('a');
     for (var a = nodes.length - 1; a >= 0; a--) {
@@ -502,9 +509,11 @@ img_load.callbacks = [toc.refresh];
 
 // scroll handler
 var redraw = (function () {
-    var sbs = false;
+    var sbs = true;
     function onresize() {
-        sbs = window.matchMedia('(min-width: 64em)').matches;
+        if (window.matchMedia)
+            sbs = window.matchMedia('(min-width: 64em)').matches;
+
         var y = (dom_hbar.offsetTop + dom_hbar.offsetHeight) + 'px';
         if (sbs) {
             dom_toc.style.top = y;
diff --git a/copyparty/web/util.js b/copyparty/web/util.js
index 79ca1c9e..42c03762 100644
--- a/copyparty/web/util.js
+++ b/copyparty/web/util.js
@@ -169,6 +169,9 @@ function ignex(all) {
 }
 
 
+function noop() { }
+
+
 function ctrl(e) {
     return e && (e.ctrlKey || e.metaKey);
 }