Index: src/views/pages/post-edit.ejs
===================================================================
--- src/views/pages/post-edit.ejs	(revision a1c8cb8e3249d5b67ffce6bdd2c3ca39542ef663)
+++ src/views/pages/post-edit.ejs	(revision b50a885cfa81ab029ecb51fba763a6f18713fa5f)
@@ -48,7 +48,8 @@
           <label class="pe-field">
             <span>Cover URL</span>
-            <input type="url" name="cover_image_url" id="cover-url-field"
+            <input type="text" name="cover_image_url" id="cover-url-field"
                    value="<%= post.cover_image_url || '' %>"
-                   placeholder="https://…  of upload met de knop">
+                   inputmode="url" autocapitalize="none" spellcheck="false"
+                   placeholder="/media/…  of https://…  (of upload met de knop)">
           </label>
           <div class="pe-cover-upload">