[OpenStreetMap] #4993: Add additional CNAMEs for GPX

[OpenStreetMap]

#4993: Add additional CNAMEs for GPX
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 Reporter:  pnorman      |      Owner:  rails-dev@…
     Type:  enhancement  |     Status:  new
 Priority:  minor        |  Milestone:
Component:  api          |    Version:
 Keywords:               |
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 Web browsers restrict the number of simultaneous connections to a given
 domain. This is stopping GPX support in iD
 (https://github.com/systemed/iD/issues/1789#issuecomment-24029394) as
 implementing a GPX call significantly slows down the loading of map data.

 Adding another cname pointing to the API would allow GPX requests to be
 issued alongside map requests.

 I'd suggest either gpx.openstreetmap.org, or just going
 a.api.openstreetmap.org, b.api.openstreetmap.org and
 c.api.openstreetmap.org like is done for tile.openstreetmap.org

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Ticket URL: <https://trac.openstreetmap.org/ticket/4993>
OpenStreetMap <http://www.openstreetmap.org/>
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