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-rw-r--r--app/javascript/flavours/glitch/reducers/compose.js4
-rw-r--r--app/javascript/mastodon/reducers/compose.js4
2 files changed, 6 insertions, 2 deletions
diff --git a/app/javascript/flavours/glitch/reducers/compose.js b/app/javascript/flavours/glitch/reducers/compose.js
index 5f53361fa..d305bc236 100644
--- a/app/javascript/flavours/glitch/reducers/compose.js
+++ b/app/javascript/flavours/glitch/reducers/compose.js
@@ -288,7 +288,9 @@ const expandMentions = status => {
   const fragment = domParser.parseFromString(status.get('content'), 'text/html').documentElement;
 
   status.get('mentions').forEach(mention => {
-    fragment.querySelector(`a[href="${mention.get('url')}"]`).textContent = `@${mention.get('acct')}`;
+    const selection = fragment.querySelector(`a[href="${mention.get('url')}"]`);
+    if (!selection) return;
+    selection.textContent = `@${mention.get('acct')}`;
   });
 
   return fragment.innerHTML;
diff --git a/app/javascript/mastodon/reducers/compose.js b/app/javascript/mastodon/reducers/compose.js
index 4c0ba1c36..67ce96feb 100644
--- a/app/javascript/mastodon/reducers/compose.js
+++ b/app/javascript/mastodon/reducers/compose.js
@@ -205,7 +205,9 @@ const expandMentions = status => {
   const fragment = domParser.parseFromString(status.get('content'), 'text/html').documentElement;
 
   status.get('mentions').forEach(mention => {
-    fragment.querySelector(`a[href="${mention.get('url')}"]`).textContent = `@${mention.get('acct')}`;
+    const selection = fragment.querySelector(`a[href="${mention.get('url')}"]`);
+    if (!selection) return;
+    selection.textContent = `@${mention.get('acct')}`;
   });
 
   return fragment.innerHTML;