Fix #8459

docs/changelog.rst

@@ -114,6 +114,10 @@ Detailed list of changes
   character at the right edge of a line that needs to be moved onto the next
   line (:iss:`8464`)
 
+- Fix a regression in 0.40.1 that caused copying to clipboard via OSC 52 from
+  applications that dont specify a destination in the escape code not working
+  (:iss:`8459`)
+
 0.40.1 [2025-03-18]
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 

kitty/clipboard.py

@@ -399,7 +399,7 @@ def parse_osc_52(self, data: memoryview, is_partial: bool = False) -> None:
         else:
             where = str(data, "utf-8", 'replace')
             data = data[len(data):]
-        destinations = {ClipboardType.from_osc52_where_field(where) for where in where}
+        destinations = {ClipboardType.from_osc52_where_field(where) for where in where or 's0'}
         destinations.discard(ClipboardType.unknown)
         if len(data) == 1 and data.tobytes() == b'?':
             for d in destinations: