When putting data inside kendo gantt and missing some fields, it can cause browser to hang for a long time and then fail to display the data corretly. That can happen in many sittuations, including, but not limitted to:
- Not specifying start and end date for event
- Not specifying start and end date for summary event
- setting event to expanded even when event has no children
- etc
I would expect many behaviours here, like throwing an error in javascript, using some default values, calculating possible values (in case of event with children), skipping incorrect values in specific context and so on. What I would not expect is for browser to end up in state where I cannot interact with page for few seconds (probably before chrome kills script that blocks page)