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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">However, if client like OpenLayers or Leaflet is making 256x256 sized WMS requests they are always the same for the same
tile and thus cacheable as well.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">-Jukka Rahkonen-<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Lähettäjä:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> mapserver-users [mailto:mapserver-users-bounces@lists.osgeo.org]
<b>Puolesta </b>Yves Jacolin<br>
<b>Lähetetty:</b> 31. toukokuuta 2018 10:08<br>
<b>Vastaanottaja:</b> Dan Little <theduckylittle@gmail.com><br>
<b>Kopio:</b> mapserver-users <mapserver-users@lists.osgeo.org>; Mark Volz <MarkVolz@co.lyon.mn.us><br>
<b>Aihe:</b> Re: [mapserver-users] enabling browser cache from Mapcache?<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">Dan,<br>
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> 1. No, you are not correct. The browser CAN cache those requests.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">Hum, in wms mode? I am not sure. In WMTS, TMS, etc mode yes but not in WMS as the request will change each time.<o:p></o:p></p>
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<p class="MsoNormal">Y.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">2018-05-30 19:15 GMT+02:00 Dan Little <<a href="mailto:theduckylittle@gmail.com" target="_blank">theduckylittle@gmail.com</a>>:<o:p></o:p></p>
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<p class="MsoNormal">Please take a moment to do a bit more reading about how browser caching works: <o:p></o:p></p>
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<p class="MsoNormal">- <a href="https://developers.google.com/web/fundamentals/performance/optimizing-content-efficiency/http-caching" target="_blank">https://developers.google.com/web/fundamentals/performance/optimizing-content-efficiency/http-caching</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">You cannot directly control what the browser chooses to cache but you can use mod_expiry and friendly-reusable URLs (like XYZ tiles) to help in that cause. Repetitive WMS requests will be caught by the cache but it's much harder to get
a hit as it will change when the screen size, resolution, or small shifts in locations differ.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">To directly answer your questions:<o:p></o:p></p>
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<p class="MsoNormal">1. No, you are not correct. The browser CAN cache those requests.<o:p></o:p></p>
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<p class="MsoNormal">2. Yes, the browser will cache those images.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Cheers.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Wed, May 30, 2018 at 11:41 AM Mark Volz <<a href="mailto:MarkVolz@co.lyon.mn.us" target="_blank">MarkVolz@co.lyon.mn.us</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Hello,<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Using Apache, I would like to know if it is possible to set up a browser cache for images from mapcache so that images are stored on the client machine instead
of having to get resent from the server. I enabled mod_expires and noticed that the png files for the buttons are cached unfortunately the mapcache png files are not cached. I presume it might not be possible to cache images from mapcache when used in WMS
mode, but it might be possible when using either WMTS, or TMS mode.<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Questions:<o:p></o:p></span></p>
<p class="m-2560011376745857524m-7815103906551265410msolistparagraph"><span lang="EN-US">1.</span><span lang="EN-US" style="font-size:7.0pt">
</span><span lang="EN-US">Am I correct that we cannot use browser or client caching with mapcache in wms mode?<o:p></o:p></span></p>
<p class="m-2560011376745857524m-7815103906551265410msolistparagraph"><span lang="EN-US">2.</span><span lang="EN-US" style="font-size:7.0pt">
</span><span lang="EN-US">Can we use browser cache when using WMTS or TMS services?<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">I am using GeoMOOSE which should be able to consume xyz TMS tiles.<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Thanks!<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="color:#1F497D">Sincerely,</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-US" style="color:#1F497D">Mark Volz, GISP</span></b><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-US" style="color:#1F497D">Lyon County GIS Coordinator</span></b><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal">_______________________________________________<br>
mapserver-users mailing list<br>
<a href="mailto:mapserver-users@lists.osgeo.org" target="_blank">mapserver-users@lists.osgeo.org</a><br>
<a href="https://lists.osgeo.org/mailman/listinfo/mapserver-users" target="_blank">https://lists.osgeo.org/mailman/listinfo/mapserver-users</a><o:p></o:p></p>
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_______________________________________________<br>
mapserver-users mailing list<br>
<a href="mailto:mapserver-users@lists.osgeo.org">mapserver-users@lists.osgeo.org</a><br>
<a href="https://lists.osgeo.org/mailman/listinfo/mapserver-users" target="_blank">https://lists.osgeo.org/mailman/listinfo/mapserver-users</a><o:p></o:p></p>
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-- <o:p></o:p></p>
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<p class="MsoNormal">Training and support manager<br>
Camptocamp<br>
Bâtiment le Dauphin - 1er étage<br>
18 rue du Lac Saint André<br>
73382 Le Bourget-du Lac<br>
<br>
Tel (France) : +33 4 58 48 20 43<br>
Tel (Switzerland) : +41 21 619 10 43<br>
Mob. : +33 6 18 75 42 21<br>
<br>
email : <a href="mailto:yves.jacolin@camptocamp.com" target="_blank">yves.jacolin@camptocamp.com</a><br>
<a href="http://www.camptocamp.com" target="_blank">http://www.camptocamp.com</a><o:p></o:p></p>
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