[mapserver-users] enabling browser cache from Mapcache?

[Yves Jacolin]

Good point :)

2018-05-31 11:49 GMT+02:00 Rahkonen Jukka (MML) <
jukka.rahkonen at maanmittauslaitos.fi>:

> Hi,
>
>
>
> 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.
>
>
>
> -Jukka Rahkonen-
>
>
>
> *Lähettäjä:* mapserver-users [mailto:mapserver-users-
> bounces at lists.osgeo.org] *Puolesta *Yves Jacolin
> *Lähetetty:* 31. toukokuuta 2018 10:08
> *Vastaanottaja:* Dan Little <theduckylittle at gmail.com>
> *Kopio:* mapserver-users <mapserver-users at lists.osgeo.org>; Mark Volz <
> MarkVolz at co.lyon.mn.us>
> *Aihe:* Re: [mapserver-users] enabling browser cache from Mapcache?
>
>
>
> Dan,
>
> > 1. No, you are not correct. The browser CAN cache those requests.
>
> 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.
>
> Y.
>
>
>
> 2018-05-30 19:15 GMT+02:00 Dan Little <theduckylittle at gmail.com>:
>
> Please take a moment to do a bit more reading about how browser caching
> works:
>
> - https://developers.google.com/web/fundamentals/performance/optimizing-
> content-efficiency/http-caching
>
>
>
> 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.
>
>
>
> To directly answer your questions:
>
> 1. No, you are not correct. The browser CAN cache those requests.
>
> 2. Yes, the browser will cache those images.
>
>
>
> Cheers.
>
>
>
> On Wed, May 30, 2018 at 11:41 AM Mark Volz <MarkVolz at co.lyon.mn.us> wrote:
>
> Hello,
>
>
>
> 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.
>
>
>
> Questions:
>
> 1.       Am I correct that we cannot use browser or client caching with
> mapcache in wms mode?
>
> 2.       Can we use browser cache when using WMTS or TMS services?
>
>
>
> I am using GeoMOOSE which should be able to consume xyz TMS tiles.
>
>
>
> Thanks!
>
>
>
> Sincerely,
>
> *Mark Volz, GISP*
>
> *Lyon County GIS Coordinator*
>
>
>
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>
>
>
> --
>
> Training and support manager
> Camptocamp
> Bâtiment le Dauphin - 1er étage
> 18 rue du Lac Saint André
> <https://maps.google.com/?q=18+rue+du+Lac+Saint+Andr%C3%A9&entry=gmail&source=g>
> 73382 Le Bourget-du Lac
>
> Tel (France) : +33 4 58 48 20 43
> Tel (Switzerland) : +41 21 619 10 43
> Mob. : +33 6 18 75 42 21
>
> email : yves.jacolin at camptocamp.com
> http://www.camptocamp.com
>



-- 
Training and support manager
Camptocamp
Bâtiment le Dauphin - 1er étage
18 rue du Lac Saint André
73382 Le Bourget-du Lac

Tel (France) : +33 4 58 48 20 43
Tel (Switzerland) : +41 21 619 10 43
Mob. : +33 6 18 75 42 21

email : yves.jacolin at camptocamp.com
http://www.camptocamp.com
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