<p>My Apache server is running mod_tile and serving up tiles just fine. However, tiles served are not being sent with a response header I have added to the Apache configuration. For testing purposes I have uploaded a static .png file directly to the server to test that it does include the response header for content served up outside of mod_tile.</p>
<p>The response header I have added to my Apache configuration is:<br>
Access-Control-Allow-Origin:*</p>
<p>Here is an example of my Apache server serving a static .png file with the appropriate response header<br>
curl -i <a href="http://MyHost/11.png" rel="nofollow">http://MyHost/11.png</a></p>
<p>% Total % Received % Xferd Average Speed Time Time Time Current<br>
Dload Upload Total Spent Left Speed<br>
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0HTTP/1.1 200 OK<br>
Date: Thu, 13 Sep 2018 21:20:06 GMT<br>
Server: Apache/2.4.6 (CentOS)<br>
Foo: Bar<br>
Last-Modified: Thu, 13 Sep 2018 20:22:20 GMT<br>
ETag: "13cd-575c676c36b15"<br>
Accept-Ranges: bytes<br>
Content-Length: 5069<br>
Access-Control-Allow-Origin: *<br>
Content-Type: image/png</p>
<p>Here is an example of the same apache server serving a tile rendered through mod_tile/renderd:<br>
curl -i <a href="http://34.198.108.116/osm_tiles/5/11/11.png" rel="nofollow">http://34.198.108.116/osm_tiles/5/11/11.png</a><br>
% Total % Received % Xferd Average Speed Time Time Time Current<br>
Dload Upload Total Spent Left Speed<br>
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0HTTP/1.1 200 OK<br>
Date: Thu, 13 Sep 2018 21:20:12 GMT<br>
Server: Apache/2.4.6 (CentOS)<br>
ETag: "cbf71740047f08923f5eed4a83dee897"<br>
Content-Length: 5069<br>
Cache-Control: max-age=604800<br>
Expires: Thu, 20 Sep 2018 21:20:12 GMT<br>
Content-Type: image/png</p>
<p>Why is renderd/mod_tile preventing apache from attaching that response header? I have attached my renderd.conf file below to help debug</p>
<p>Here is my renderd.conf file:<br>
[renderd]<br>
;socketname=/var/run/renderd/renderd.sock<br>
num_threads=4<br>
tile_dir=/var/lib/mod_tile<br>
stats_file=/var/run/renderd/renderd.stats</p>
<p>[mapnik]<br>
plugins_dir=/usr/local/lib/mapnik/input<br>
font_dir=/usr/local/share/fonts/truetype<br>
font_dir_recurse=1</p>
<p>[default]<br>
URI=/osm_tiles/<br>
TILEDIR=/var/lib/mod_tile<br>
XML=/usr/local/src/mapnik-style/osm.xml<br>
HOST=tiledev2.rostermonster.com<br>
TILESIZE=256<br>
CORS=*</p>
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