[Feb 11, 2020] Hancom Office Online v188.8.131.52.9 Update
The latest Hancom Office Online v184.108.40.206.9 update includes the following fixes or improvements:
+ fix for handling browser tab close event in Chrome version 80 or newer. XHR asynchronous processing is used when unloading instead.
+ improved security by enhancing secure file open URL and parameters
+ fixed various synchronization errors when deleting characters after navigating downwards with arrow key
+ fixed XSS security issues in read-only mode
+ various other bug fixes
+ new Data Validation feature was added. This feature allows users to create validation rules for cells to ensure that input values adhere to a certain rule set.
+ added feature to change conditional rule priority (via arrow buttons)
+ fixed script error when expanding auto filter area
+ fixed error when merging cells containing sparklines
+ Increased presentation file open limitation from existing 100MB to 200MB
+ improved presentation loading performance