Hi,

This server and site is not configured in the most usual way.  The 
GetCapabilities is captured from http:// address and it is also advertised to 
be the GetMap address in the GetCapabilities document. You can see this by 
sending:

http://gpp3-wxs.ign.fr/4hnoob7ikk8zb8rzj113echo/geoportail/r/wms?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetCapabilities

However, the site is using a temporary redirecting which says that in reality 
the GetMap must be sent to a https:// secured adress. If this new address is 
used some clients deny it because of an untrusted sertificate.

Now I fear that we will need Andrea or some other real developer to tell if 
Geoserver when it cascades WMS can follow http redirections (http 302 Moved 
Temporarily). I paste here what I got on console when making a trial with wget. 
Sorry about line breaks and Finnish messages.

C:\ohjelmat\GnuWin32\bin>wget "http://gpp3-wxs.ign.fr/4hnoob7ikk8zb8rzj113echo/g
eoportail/r/wms?SERVICE=WMS&LAYERS=GEOGRAPHICALGRIDSYSTEMS.MAPS&CRS=EPSG:3857
&FORMAT=image%2Fpng&HEIGHT=388&TRANSPARENT=FALSE&BGCOLOR=0xFFFFFF
&REQUEST=GetMap&BBOX=-4.0075016E7,-2.55379835625E7,4.0075016E7,3.52007125625E7
&WIDTH=512&STYLES=&VERSION=1.3.0" -O test.png

SYSTEM_WGETRC = c:/progra~1/wget/etc/wgetrc
syswgetrc = C:\ohjelmat\GnuWin32/etc/wgetrc
--2013-11-22 21:04:57--  http://gpp3-wxs.ign.fr/4hnoob7ikk8zb8rzj113echo/geoport
ail/r/wms?SERVICE=WMS&LAYERS=GEOGRAPHICALGRIDSYSTEMS.MAPS&CRS=EPSG:3857&FORMAT=i
mage%2Fpng&HEIGHT=388&TRANSPARENT=FALSE&BGCOLOR=0xFFFFFF&REQUEST=GetMap&BBOX=-4.
0075016E7,-2.55379835625E7,4.0075016E7,3.52007125625E7&WIDTH=512&STYLES=&VERSION
=1.3.0
Selvitetään osoitetta gpp3-wxs.ign.fr... 160.92.169.129
Yhdistetään palvelimeen gpp3-wxs.ign.fr|160.92.169.129|:80... yhdistetty.
HTTP-pyyntö lähetetty, odotetaan vastausta... 302 Moved Temporarily
Sijainti: https://gpp3-wxs.ign.fr/4hnoob7ikk8zb8rzj113echo/geoportail/r/wms?SERV
ICE=WMS&LAYERS=GEOGRAPHICALGRIDSYSTEMS.MAPS&CRS=EPSG:3857&FORMAT=image%2Fpng&HEI
GHT=388&TRANSPARENT=FALSE&BGCOLOR=0xFFFFFF&REQUEST=GetMap&BBOX=-4.0075016E7,-2.5
5379835625E7,4.0075016E7,3.52007125625E7&WIDTH=512&STYLES=&VERSION=1.3.0 [seurat
aan]
--2013-11-22 21:05:01--  https://gpp3-wxs.ign.fr/4hnoob7ikk8zb8rzj113echo/geopor
tail/r/wms?SERVICE=WMS&LAYERS=GEOGRAPHICALGRIDSYSTEMS.MAPS&CRS=EPSG:3857&FORMAT=
image%2Fpng&HEIGHT=388&TRANSPARENT=FALSE&BGCOLOR=0xFFFFFF&REQUEST=GetMap&BBOX=-4
.0075016E7,-2.55379835625E7,4.0075016E7,3.52007125625E7&WIDTH=512&STYLES=&VERSIO
N=1.3.0
Yhdistetään palvelimeen gpp3-wxs.ign.fr|160.92.169.129|:443... yhdistetty.
VIRHE: ei voida todentaa kohteen gpp3-wxs.ign.fr varmennetta, myöntäjä: "/C=US/O
=Entrust, Inc./OU=www.entrust.net/rpa is incorporated by reference/OU=(c) 2009 E
ntrust, Inc./CN=Entrust Certification Authority - L1C":
  Itse allekirjoitettu varmenne kohdattu.
Ottaaksesi yhteyden kohteeseen gpp3-wxs.ign.fr:n turvattomasti, käytä "--no-chec
k-certificate"-valitsinta.
SSL-yhteyden muodostaminen ei onnistunut.

-Jukka Rahkonen-


________________________________
 SecularKid wrote:

> Hey sure, here the whole first message error :


<?xml version="1.0" encoding="UTF-8" standalone="no"?><!DOCTYPE 
ServiceExceptionReport SYSTEM 
"http://129.182.247.82:8080/geoserver/schemas/wms/1.1.1/WMS_exception_1_1_1.dtd";>
 <ServiceExceptionReport version="1.1.1" >   <ServiceException>
      Error rendering coverage on the fast path
java.io.IOException: GetMap failed: 
http://gpp3-wxs.ign.fr/4hnoob7ikk8zb8rzj113echo/geoportail/r/wms?SERVICE=WMS&amp;LAYERS=GEOGRAPHICALGRIDSYSTEMS.MAPS&amp;CRS=EPSG:3857&amp;FORMAT=image%2Fpng&amp;HEIGHT=388&amp;TRANSPARENT=FALSE&amp;BGCOLOR=0xFFFFFF&amp;REQUEST=GetMap&amp;BBOX=-4.0075016E7,-2.55379835625E7,4.0075016E7,3.52007125625E7&amp;WIDTH=512&amp;STYLES=&amp;VERSION=1.3.0
GetMap failed: 
http://gpp3-wxs.ign.fr/4hnoob7ikk8zb8rzj113echo/geoportail/r/wms?SERVICE=WMS&amp;LAYERS=GEOGRAPHICALGRIDSYSTEMS.MAPS&amp;CRS=EPSG:3857&amp;FORMAT=image%2Fpng&amp;HEIGHT=388&amp;TRANSPARENT=FALSE&amp;BGCOLOR=0xFFFFFF&amp;REQUEST=GetMap&amp;BBOX=-4.0075016E7,-2.55379835625E7,4.0075016E7,3.52007125625E7&amp;WIDTH=512&amp;STYLES=&amp;VERSION=1.3.0
</ServiceException></ServiceExceptionReport>


2013/11/22 Rahkonen Jukka [via OSGeo.org] <[hidden email]<UrlBlockedError.aspx>>
Hi,

it is impossible to answer with that information.  Show us the failed GetMap 
(<URL of the request>) so we can see what it is missing.  You can edit it to 
have http://foo.com/foowms? , the real address is not so important.

-Jukka Rahkonen-

SecularKid wrote:

>
> I tried to cascade a remote WMS service using GeoServer. After configuration,
> GeoServer allows me to publish data from this remote service.
> But I try to display it, in the layer preview, the tile is broken.
> I copy and paste the URL of this broken tile, and I got this error message :
>
> Error rendering coverage on the fast path
> java.io.IOException: GetMap failed (<URL of the request>) GetMap failed (<URL
> of the request>)
>
> This time, when I copy and paste the (<URL of the request>) from the error
> message, I got this :
>
> <ExceptionReport>
> <Exception exceptionCode="MissingParameter">Resource parameter not
> found</Exception></ExceptionReport>
>
> What should I do to make it work ? If I request it directly from OpenLayers,
> everything is displaying fine.
> Thanks by advance.
>
> Vincent
>
>
>
> --
> View this message in context: http://osgeo-org.1560.x6.nabble.com/Error-
> when-cascading-a-WMS-web-service-with-GeoServer-tp5090615.html
> Sent from the GeoServer - Dev mailing list archive at Nabble.com.
>
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