A link shared through a chat room in a chat application is displayed. When a selection of the link is received, a content execution result corresponding to the link through an in-app browser of the chat application or an external browser distinct from the chat application is displayed. A notification for a new chat message is then displayed while the content execution result is being displayed through the in-app browser or the external browser. When a selection for the notification of the new chat message is received, the display of the content execution result is switched to a display of the chat room in which the new chat message was received. A content box, which enables access to the content execution result, is displayed on the switched display of the chat room.