The trail names along the side of trails on the map are actually pre-rendered map tile images. These tile images are generated then cached to increase load time and performance.

There are several levels of caching, the CDN caches for 6 days, our server caches the tile for 6 days. So it is possible with the correct overlap timing it could take up to 12 days to refresh.

When a trail is updated its supposed to send a boundingbox to the tile server saying update all tiles in this area. But if this fails for some reason it could be upto 6 days on the CDN to refresh.

And then there is always your local browser cache that might cache tile images. Although it shouldn't cache longer than 6 days since that's what the header maxage is set too.
  • By canadaka Plus
  • #75 - 844 views