I've got several vintages of historical imagery that I would love to make available online, but I am not terribly happy with any of the options available through the current AGOL / WAB offerings. It seems like there are tools that dance all around what I want, but nothing quite like this:
City of Surrey Historical Imagery Viewer
I love the idea of being able to zoom in any area in the map and then easily switch back and forth between years. I took a stab at doing a swipe tool map, but it required so many set up steps for the user (turn on one layer, pick a base map, set up the slider tool) that I didn't think people would like it.
