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vatavian / vataviamap

.Net maps and GPS tracks
http://vatavian.github.io/vataviamap/
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Use If-Modified-Since header #23

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
If a server does not use ETag, we may be able to use If-Modified-Since to
avoid re-downloading the same version of a tile.

1. Determine whether any servers currently in use do not support ETag but
do respond well to If-Modified-Since

2. Retain Last-Modified for reuse as If-Modified-Since when checking for
fresh tile

Original issue reported on code.google.com by mark.g...@gmail.com on 24 Jun 2009 at 6:44

GoogleCodeExporter commented 9 years ago 
Now using If-Modified-Since but not yet storing Last-Modified separately from 
the date the tile was last checked

Original comment by mark.g...@gmail.com on 9 Feb 2011 at 11:48