title: How can I prevent a Leaflet popup from closing
body: <p>I have Leaflet popups bind to markers. My probleme is, when you click on a marker, it's own popup closes and I want them to always stay open at all time.</p>
  
  <p>To be specific, I know I can use the autoClose option to prevent a popup from closing when clicking another marker, I'm talking about preventing a popup from closing when clicking on a marker that have been binded to.</p>
  
  <p>I've been reading the Leaflet documentation and it seems like there's no popup option to prevent that.</p>
  
  <p>There could be some sort of plugin to add options to popups, but I didn't find any..</p>
  
  <p>Maybe I could create my own popup Class, and prevent it from being able to close ? But I don't really know how to do that.</p>
  
  <p>Thanks.</p>