Index: src/assets/css/style.css
===================================================================
--- src/assets/css/style.css	(revision 7475ff3132b7044bdc1bf9541e5686fbbc3eadbf)
+++ src/assets/css/style.css	(revision 93b147d67da01570400474044f1ff3c35aeb6592)
@@ -2475,4 +2475,10 @@
     overflow: hidden;
     z-index: 1;
+    /* Federated link posts can have a long bare URL as their title — break it so it wraps
+       inside the tile and clamps cleanly instead of overflowing past both edges. */
+    max-width: 100%;
+    overflow-wrap: anywhere;
+    word-break: break-word;
+    hyphens: auto;
 }