Discard press event for ctrl+shift+release open_url mapping as it can causes issues when delivered to the terminal program

kitty/options/definition.py

@@ -484,6 +484,13 @@ mma('Click the link under the mouse cursor',
     ' click based version has an unavoidable delay of :opt:`click_interval`, to disambiguate clicks from double clicks.'
     )
 
+mma('Click the link under the mouse cursor',
+    'click_url_discard ctrl+shift+left press grabbed mouse_discard_event',
+    long_text='Prevent this press event from being sent to the program that has'
+    ' grabbed the mouse, as the corresponding release event is used to open a URL.'
+    )
+
+
 mma('Paste from the primary selection',
     'paste_selection middle release ungrabbed paste_selection',
     )

kitty/options/types.py

@@ -859,6 +859,8 @@ defaults.mouse_map = [
     MouseMapping(0, 5, -1, True, KeyAction('mouse_click_url')),
     # click_url
     MouseMapping(0, 5, -1, False, KeyAction('mouse_click_url')),
+    # click_url_discard
+    MouseMapping(0, 5, 1, True, KeyAction('mouse_discard_event')),
     # paste_selection
     MouseMapping(2, 0, -1, False, KeyAction('paste_selection')),
     # start_simple_selection

kitty/window.py

@@ -829,6 +829,9 @@ class Window:
     def mouse_click_url(self) -> None:
         click_mouse_url(self.os_window_id, self.tab_id, self.id)
 
+    def mouse_discard_event(self) -> None:
+        pass
+
     def mouse_click_url_or_select(self) -> None:
         if not self.screen.has_selection():
             self.mouse_click_url()