fix: 适配 nginx https 代理问题

app/services/tilesets/controller.js

@@ -18,6 +18,7 @@ module.exports.list = (req, res, next) => {
 }
 
 module.exports.getTilejson = (req, res, next) => {
+  const protocol = req.headers['x-forwarded-proto'] || req.protocol
   const { tilesetId } = req.params
   const tilesetsDir = path.resolve(`./data/tilesets`)
   const source = `mbtiles://${tilesetsDir}/${tilesetId}.mbtiles?mode=ro`
@@ -29,7 +30,7 @@ module.exports.getTilejson = (req, res, next) => {
       source.close()
       if (err) return next(err)
 
-      const apiBaseUrl = `${req.protocol}://${req.headers.host}/api`
+      const apiBaseUrl = `${protocol}://${req.headers.host}/api`
       info.tiles = info.tiles || [`${apiBaseUrl}/tilesets/${tilesetId}/{z}/{x}/{y}.${info.format}`]
       info.type = ['pbf', 'mvt'].includes(info.format) ? 'vector' : 'raster'