They are currently implemented using waypoints. If used alone, without Google Charts, they work OK on mobile Android. If used together with the charts, it looks like it takes plenty of time before the header position is updated, and sometimes headers stay just messed up.
They are currently implemented using waypoints. If used alone, without Google Charts, they work OK on mobile Android. If used together with the charts, it looks like it takes plenty of time before the header position is updated, and sometimes headers stay just messed up.