Remove strict checking of xcap content type.

src/net/java/sip/communicator/impl/protocol/sip/xcap/BaseHttpXCapClient.java

@@ -209,8 +209,8 @@ protected XCapHttpResponse get(URI uri)
                 // for debug purposes print only xmls
                 // skip the icon queries
                 if(contentBytes != null && result.getContentType() != null
-                        && !result.getContentType().equalsIgnoreCase
-                        (PresContentClient.CONTENT_TYPE))
+                        && !result.getContentType()
+                                .startsWith(PresContentClient.CONTENT_TYPE))
                     contenString = new String(contentBytes);
                 else
                     contenString = "";

src/net/java/sip/communicator/impl/protocol/sip/xcap/XCapClientImpl.java

@@ -400,7 +400,7 @@ public ContentType getPresContent(String imageName)
                         resourceId.toString());
                 throw new XCapException(errorMessage);
             }
-            if (!contentType.equals(PresContentClient.CONTENT_TYPE))
+            if (!contentType.startsWith(PresContentClient.CONTENT_TYPE))
             {
                 String errorMessage = String.format(
                         "XCAP server returns invalid PresContent content type: %1s",
@@ -628,7 +628,7 @@ private String getResource(XCapResourceId resourceId, String contentType)
                 return null;
             }
 
-            if (!contentType.equals(response.getContentType()))
+            if (!response.getContentType().startsWith(contentType))
             {
                 String errorMessage = String.format(
                         "XCAP server returns invalid content type: %1s",