I will try to explain this the best I can but I am sure you will not be able to reproduce it.
On my homepage there are several audio players and several embeded vimeo video players.
Sometimes when an audio player is selected and the audio is playing, the audio will stop and it will immediately jump to playing one of the videos without any user interaction.
This has happened continually and seemingly random and only on iphones.
Do you have any ideas what could cause this? The page is in the secure notes.