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- <script type="text/javascript" src="https://unpkg.com/leaflet@1.0.3/dist/leaflet.js"></script>
- <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/leaflet-plugins/1.6.1/control/Permalink.min.js"></script>
- <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/leaflet-plugins/1.6.1/control/Permalink.Layer.min.js"></script>
- <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/leaflet-plugins/1.6.1/control/Permalink.Overlay.js"></script>
+ <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.6.0/leaflet.css" integrity="sha256-SHMGCYmST46SoyGgo4YR/9AlK1vf3ff84Aq9yK4hdqM=" crossorigin="anonymous" />
+ <script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.6.0/leaflet.js" integrity="sha256-fNoRrwkP2GuYPbNSJmMJOCyfRB2DhPQe0rGTgzRsyso=" crossorigin="anonymous"></script>
+ <script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet-plugins/3.3.1/control/Permalink.min.js" integrity="sha256-gz/xcf8U9RgwWUhQK8SgCuS024ACmdXf+eWrglT2KDE=" crossorigin="anonymous"></script>
+ <script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet-plugins/3.3.1/control/Permalink.Layer.min.js" integrity="sha256-IR3dLMDgW61PPbrjYPe8eD7ou3RBAaVyoD4CNcq+8tw=" crossorigin="anonymous"></script>
+ <script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet-plugins/3.3.1/control/Permalink.Overlay.min.js" integrity="sha256-xoP/txAKIYDr3MjZh1f2qtNn8lEa6zmhhkPxoejGgQM=" crossorigin="anonymous"></script>