diff --git a/src/server/services/wfs/qgswfsgetfeature.cpp b/src/server/services/wfs/qgswfsgetfeature.cpp
index e95c4c0e276d..be6feee746b6 100644
--- a/src/server/services/wfs/qgswfsgetfeature.cpp
+++ b/src/server/services/wfs/qgswfsgetfeature.cpp
@@ -414,12 +414,30 @@ namespace QgsWfs
         geometryName = QLatin1String( "NONE" );
       }
       // outputCrs
-      QgsCoordinateReferenceSystem outputCrs = vlayer->crs();
+      // if the crs is defined in the parameters, use it
+      // otherwise fallback:
+      //  - geojson uses 'EPSG:4326' by default
+      //  - other formats use the default CRS (the layer's CRS)
+      const QString requestSrsName = request.serverParameters().value( QStringLiteral( "SRSNAME" ) );
+      QString outputSrsName;
       if ( !query.srsName.isEmpty() )
       {
-        outputCrs = QgsCoordinateReferenceSystem::fromOgcWmsCrs( query.srsName );
+        outputSrsName = query.srsName;
+      }
+      else if ( !requestSrsName.isEmpty() )
+      {
+        outputSrsName = requestSrsName;
+      }
+      else
+      {
+        // fallback to a default value
+        // geojson uses 'EPSG:4326' by default
+        outputSrsName = ( aRequest.outputFormat == QgsWfsParameters::Format::GeoJSON ) ? QStringLiteral( "EPSG:4326" ) : vlayer->crs().authid();
       }
 
+      QgsCoordinateReferenceSystem outputCrs;
+      outputCrs.createFromUserInput( outputSrsName );
+
       bool forceGeomToMulti = QgsWkbTypes::isMultiType( vlayer->wkbType() );
 
       if ( !featureRequest.filterRect().isEmpty() )
@@ -465,19 +483,9 @@ namespace QgsWfs
         // It needs to be an EPSG urn, e.g. urn:ogc:def:crs:EPSG::4326
         // This follows geoserver convention
         // See: https://docs.geoserver.org/stable/en/user/services/wfs/axis_order.html
-        // if the crs is defined in the parameters, use it
-        // otherwise:
-        //  - geojson uses 'EPSG:4326' by default
-        //  - other formats use the default CRS (DefaultSRS, which is the layer's CRS)
-        const QString requestSrsName = request.serverParameters().value( QStringLiteral( "SRSNAME" ) );
-        const QString srsName
-        {
-          !requestSrsName.isEmpty() ? requestSrsName :
-          ( aRequest.outputFormat == QgsWfsParameters::Format::GeoJSON ? QStringLiteral( "EPSG:4326" ) : outputCrs.authid() )
-        };
         const bool invertAxis { mWfsParameters.versionAsNumber() >= QgsProjectVersion( 1, 1, 0 ) &&
                                 outputCrs.hasAxisInverted() &&
-                                ! srsName.startsWith( QLatin1String( "EPSG:" ) ) };
+                                ! outputSrsName.startsWith( QLatin1String( "EPSG:" ) ) };
 
         const createFeatureParams cfp = { layerPrecision,
                                           layerCrs,
@@ -487,7 +495,7 @@ namespace QgsWfs
                                           geometryName,
                                           outputCrs,
                                           forceGeomToMulti,
-                                          srsName,
+                                          outputSrsName,
                                           invertAxis
                                         };
         while ( fit.nextFeature( feature ) && ( aRequest.maxFeatures == -1 || sentFeatures < aRequest.maxFeatures ) )
@@ -1275,21 +1283,15 @@ namespace QgsWfs
         QDomElement bbElem = doc.createElement( QStringLiteral( "gml:boundedBy" ) );
         if ( format == QgsWfsParameters::Format::GML3 )
         {
-          // For WFS 1.1 we honor requested CRS and axis order
-          // Axis is not inverted if srsName starts with EPSG
-          // It needs to be an EPSG urn, e.g. urn:ogc:def:crs:EPSG::4326
-          // This follows geoserver convention
-          // See: https://docs.geoserver.org/stable/en/user/services/wfs/axis_order.html
+          // If requested SRS (outputSrsName) is different from rect CRS (crs) we need to transform the envelope
           const QString requestSrsName = request.serverParameters().value( QStringLiteral( "SRSNAME" ) );
-          const QString srsName = !requestSrsName.isEmpty() ? requestSrsName : crs.authid();
-          const bool invertAxis { mWfsParameters.versionAsNumber() >= QgsProjectVersion( 1, 1, 0 ) &&
-                                  crs.hasAxisInverted() &&
-                                  ! srsName.startsWith( QLatin1String( "EPSG:" ) ) };
+          const QString outputSrsName = !requestSrsName.isEmpty() ? requestSrsName : crs.authid();
+          QgsCoordinateReferenceSystem outputCrs;
+          outputCrs.createFromUserInput( outputSrsName );
 
-          // If requested SRS (srsName) is different from rect CRS (crs) we need to transform the envelope
           QgsCoordinateTransform transform;
           transform.setSourceCrs( crs );
-          transform.setDestinationCrs( QgsCoordinateReferenceSystem( srsName ) );
+          transform.setDestinationCrs( outputCrs );
           QgsRectangle crsCorrectedRect { rect ? *rect : QgsRectangle() };
 
           try
@@ -1301,10 +1303,19 @@ namespace QgsWfs
             Q_UNUSED( cse )
           }
 
-          QDomElement envElem = QgsOgcUtils::rectangleToGMLEnvelope( &crsCorrectedRect, doc, srsName, invertAxis, prec );
+          // For WFS 1.1 we honor requested CRS and axis order
+          // Axis is not inverted if srsName starts with EPSG
+          // It needs to be an EPSG urn, e.g. urn:ogc:def:crs:EPSG::4326
+          // This follows geoserver convention
+          // See: https://docs.geoserver.org/stable/en/user/services/wfs/axis_order.html
+          const bool invertAxis { mWfsParameters.versionAsNumber() >= QgsProjectVersion( 1, 1, 0 ) &&
+                                  outputCrs.hasAxisInverted() &&
+                                  !outputSrsName.startsWith( QLatin1String( "EPSG:" ) ) };
+
+          QDomElement envElem = QgsOgcUtils::rectangleToGMLEnvelope( &crsCorrectedRect, doc, outputSrsName, invertAxis, prec );
           if ( !envElem.isNull() )
           {
-            if ( crs.isValid() && srsName.isEmpty() )
+            if ( crs.isValid() && outputSrsName.isEmpty() )
             {
               envElem.setAttribute( QStringLiteral( "srsName" ), crs.authid() );
             }
diff --git a/tests/src/python/test_qgsserver_wfs.py b/tests/src/python/test_qgsserver_wfs.py
index 37503a36131c..ccc40f456378 100644
--- a/tests/src/python/test_qgsserver_wfs.py
+++ b/tests/src/python/test_qgsserver_wfs.py
@@ -287,7 +287,7 @@ def test_getfeature_post(self):
         tests = []
 
         template = """<?xml version="1.0" encoding="UTF-8"?>
-<wfs:GetFeature service="WFS" version="1.0.0" {} xmlns:wfs="http://www.opengis.net/wfs" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.1.0/wfs.xsd">
+<wfs:GetFeature service="WFS" version="{}" {} xmlns:wfs="http://www.opengis.net/wfs" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.1.0/wfs.xsd">
   <wfs:Query typeName="testlayer" xmlns:feature="http://www.qgis.org/gml">
     <ogc:Filter xmlns:ogc="http://www.opengis.net/ogc">
       <ogc:BBOX>
@@ -301,15 +301,20 @@ def test_getfeature_post(self):
   </wfs:Query>
 </wfs:GetFeature>
 """
-        tests.append(('nobbox_post', template.format("")))
-        tests.append(('startindex2_post', template.format('startIndex="2"')))
-        tests.append(('limit2_post', template.format('maxFeatures="2"')))
-        tests.append(('start1_limit1_post', template.format(
-            'startIndex="1" maxFeatures="1"')))
-
-        srsTemplate = """<?xml version="1.0" encoding="UTF-8"?>
-<wfs:GetFeature service="WFS" version="1.0.0" {} xmlns:wfs="http://www.opengis.net/wfs" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.1.0/wfs.xsd">
-  <wfs:Query typeName="testlayer" srsName="EPSG:3857" xmlns:feature="http://www.qgis.org/gml">
+        for version in ['1.0.0', '1.1.0']:
+            version_underscore = '_' + version.replace(".", "_")
+            tests.append((f'nobbox_post{version_underscore}', template.format(
+                version, "")))
+            tests.append((f'startindex2_post{version_underscore}', template.format(
+                version, 'startIndex="2"')))
+            tests.append((f'limit2_post{version_underscore}', template.format(
+                version, 'maxFeatures="2"')))
+            tests.append((f'start1_limit1_post{version_underscore}', template.format(
+                version, 'startIndex="1" maxFeatures="1"')))
+
+        srsTemplate = """<?xml version="" encoding="UTF-8"?>
+<wfs:GetFeature service="WFS" version="{}" {} xmlns:wfs="http://www.opengis.net/wfs" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.1.0/wfs.xsd">
+  <wfs:Query typeName="testlayer" {} xmlns:feature="http://www.qgis.org/gml">
     <ogc:Filter xmlns:ogc="http://www.opengis.net/ogc">
       <ogc:BBOX>
         <ogc:PropertyName>geometry</ogc:PropertyName>
@@ -322,7 +327,12 @@ def test_getfeature_post(self):
   </wfs:Query>
 </wfs:GetFeature>
 """
-        tests.append(('srsname_post', srsTemplate.format("")))
+        tests.append(('srsname_post_1_0_0', srsTemplate.format(
+            '1.0.0', '', 'srsName="EPSG:3857"')))
+        tests.append(('srsname_post_1_1_0', srsTemplate.format(
+            '1.1.0', '', 'srsName="EPSG:3857"')))
+        tests.append(('srsname_post_1_1_0_urn', srsTemplate.format(
+            '1.1.0', '', 'srsName="urn:ogc:def:crs:EPSG::3857"')))
 
         # Issue https://github.com/qgis/QGIS/issues/36398
         # Check get feature within polygon having srsName=EPSG:4326 (same as the project/layer)
@@ -494,7 +504,7 @@ def test_getfeature_post(self):
   </wfs:Query>
 </wfs:GetFeature>
 """
-        tests.append(('nobbox_post', template.format("")))
+        tests.append(('nobbox_post_1_0_0', template.format("")))
 
         template = """<?xml version="1.0" encoding="UTF-8"?>
 <wfs:GetFeature service="WFS" version="1.0.0" {} xmlns:wfs="http://www.opengis.net/wfs" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.1.0/wfs.xsd">
@@ -511,7 +521,7 @@ def test_getfeature_post(self):
   </wfs:Query>
 </wfs:GetFeature>
 """
-        tests.append(('nobbox_post', template.format("")))
+        tests.append(('nobbox_post_1_0_0', template.format("")))
 
         for id, req in tests:
             self.wfs_getfeature_post_compare(id, req)
@@ -572,11 +582,16 @@ def test_getFeatureFeatureId(self):
             "GetFeature", '1.0.0', "SRSNAME=EPSG:4326&TYPENAME=testlayer&FEATUREID=testlayer.0&PROPERTYNAME=*", 'wfs_getFeature_1_0_0_featureid_0')
 
     def test_getFeatureFeature11urn(self):
-        """Test GetFeature with SRSNAME urn:ogc:def:crs:EPSG::4326"""
+        """Test GetFeature with SRSNAME as urn:ogc:def:crs:EPSG::X"""
 
+        # urn:ogc:def:crs:EPSG::4326
         self.wfs_request_compare(
             "GetFeature", '1.1.0', "SRSNAME=urn:ogc:def:crs:EPSG::4326&TYPENAME=testlayer&FEATUREID=testlayer.0", 'wfs_getFeature_1_1_0_featureid_0_1_1_0')
 
+        # urn:ogc:def:crs:EPSG::3857
+        self.wfs_request_compare(
+            "GetFeature", '1.1.0', "SRSNAME=urn:ogc:def:crs:EPSG::3857&TYPENAME=testlayer&FEATUREID=testlayer.0", 'wfs_getFeature_1_1_0_featureid_0_1_1_0_epsg3857')
+
     def test_get_feature_srsname_empty(self):
         """Test GetFeature with an empty SRSNAME."""
         self.wfs_request_compare(
diff --git a/tests/testdata/qgis_server/wfs_getFeature_1_1_0_featureid_0_1_1_0_epsg3857.txt b/tests/testdata/qgis_server/wfs_getFeature_1_1_0_featureid_0_1_1_0_epsg3857.txt
new file mode 100644
index 000000000000..1cd1b8d4c572
--- /dev/null
+++ b/tests/testdata/qgis_server/wfs_getFeature_1_1_0_featureid_0_1_1_0_epsg3857.txt
@@ -0,0 +1,28 @@
+Content-Type: text/xml; subtype=gml/3.1.1; charset=utf-8
+
+<wfs:FeatureCollection xmlns:wfs="http://www.opengis.net/wfs" xmlns:ogc="http://www.opengis.net/ogc" xmlns:gml="http://www.opengis.net/gml" xmlns:ows="http://www.opengis.net/ows" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:qgs="http://www.qgis.org/gml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.1.0/wfs.xsd http://www.qgis.org/gml ?MAP=/home/ale/dev/QGIS/tests/testdata/qgis_server/test_project_wfs.qgs&amp;SERVICE=WFS&amp;VERSION=1.1.0&amp;REQUEST=DescribeFeatureType&amp;TYPENAME=testlayer&amp;OUTPUTFORMAT=text/xml; subtype%3Dgml/3.1.1">
+<gml:boundedBy>
+ <gml:Envelope srsName="urn:ogc:def:crs:EPSG::3857">
+  <gml:lowerCorner>913204.91280263 5606011.45647302</gml:lowerCorner>
+  <gml:upperCorner>913214.67407005 5606025.23730414</gml:upperCorner>
+ </gml:Envelope>
+</gml:boundedBy>
+<gml:featureMember>
+ <qgs:testlayer gml:id="testlayer.0">
+  <gml:boundedBy>
+   <gml:Envelope srsName="urn:ogc:def:crs:EPSG::3857">
+    <gml:lowerCorner>913209.03579284 5606025.23730414</gml:lowerCorner>
+    <gml:upperCorner>913209.03579284 5606025.23730414</gml:upperCorner>
+   </gml:Envelope>
+  </gml:boundedBy>
+  <qgs:geometry>
+   <Point xmlns="http://www.opengis.net/gml" srsName="urn:ogc:def:crs:EPSG::3857">
+    <pos xmlns="http://www.opengis.net/gml" srsDimension="2">913209.03579284 5606025.23730414</pos>
+   </Point>
+  </qgs:geometry>
+  <qgs:id>1</qgs:id>
+  <qgs:name>one</qgs:name>
+  <qgs:utf8nameè>one èé</qgs:utf8nameè>
+ </qgs:testlayer>
+</gml:featureMember>
+</wfs:FeatureCollection>
diff --git a/tests/testdata/qgis_server/wfs_getfeature_limit2_post.txt b/tests/testdata/qgis_server/wfs_getfeature_limit2_post_1_0_0.txt
similarity index 100%
rename from tests/testdata/qgis_server/wfs_getfeature_limit2_post.txt
rename to tests/testdata/qgis_server/wfs_getfeature_limit2_post_1_0_0.txt
diff --git a/tests/testdata/qgis_server/wfs_getfeature_limit2_post_1_1_0.txt b/tests/testdata/qgis_server/wfs_getfeature_limit2_post_1_1_0.txt
new file mode 100644
index 000000000000..c8626c1f6b73
--- /dev/null
+++ b/tests/testdata/qgis_server/wfs_getfeature_limit2_post_1_1_0.txt
@@ -0,0 +1,46 @@
+Content-Type: text/xml; subtype=gml/3.1.1; charset=utf-8
+
+<wfs:FeatureCollection xmlns:wfs="http://www.opengis.net/wfs" xmlns:ogc="http://www.opengis.net/ogc" xmlns:gml="http://www.opengis.net/gml" xmlns:ows="http://www.opengis.net/ows" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:qgs="http://www.qgis.org/gml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.1.0/wfs.xsd http://www.qgis.org/gml ?">
+<gml:boundedBy>
+ <gml:Envelope srsName="EPSG:4326">
+  <gml:lowerCorner>8 44</gml:lowerCorner>
+  <gml:upperCorner>9 45</gml:upperCorner>
+ </gml:Envelope>
+</gml:boundedBy>
+<gml:featureMember>
+ <qgs:testlayer gml:id="testlayer.0">
+  <gml:boundedBy>
+   <gml:Envelope srsName="EPSG:4326">
+    <gml:lowerCorner>8.20349634 44.90148253</gml:lowerCorner>
+    <gml:upperCorner>8.20349634 44.90148253</gml:upperCorner>
+   </gml:Envelope>
+  </gml:boundedBy>
+  <qgs:geometry>
+   <Point xmlns="http://www.opengis.net/gml" srsName="EPSG:4326">
+    <pos xmlns="http://www.opengis.net/gml" srsDimension="2">8.20349634 44.90148253</pos>
+   </Point>
+  </qgs:geometry>
+  <qgs:id>1</qgs:id>
+  <qgs:name>one</qgs:name>
+  <qgs:utf8nameè>one èé</qgs:utf8nameè>
+ </qgs:testlayer>
+</gml:featureMember>
+<gml:featureMember>
+ <qgs:testlayer gml:id="testlayer.1">
+  <gml:boundedBy>
+   <gml:Envelope srsName="EPSG:4326">
+    <gml:lowerCorner>8.20354699 44.90143568</gml:lowerCorner>
+    <gml:upperCorner>8.20354699 44.90143568</gml:upperCorner>
+   </gml:Envelope>
+  </gml:boundedBy>
+  <qgs:geometry>
+   <Point xmlns="http://www.opengis.net/gml" srsName="EPSG:4326">
+    <pos xmlns="http://www.opengis.net/gml" srsDimension="2">8.20354699 44.90143568</pos>
+   </Point>
+  </qgs:geometry>
+  <qgs:id>2</qgs:id>
+  <qgs:name>two</qgs:name>
+  <qgs:utf8nameè>two àò</qgs:utf8nameè>
+ </qgs:testlayer>
+</gml:featureMember>
+</wfs:FeatureCollection>
diff --git a/tests/testdata/qgis_server/wfs_getfeature_nobbox_post.txt b/tests/testdata/qgis_server/wfs_getfeature_nobbox_post_1_0_0.txt
similarity index 100%
rename from tests/testdata/qgis_server/wfs_getfeature_nobbox_post.txt
rename to tests/testdata/qgis_server/wfs_getfeature_nobbox_post_1_0_0.txt
diff --git a/tests/testdata/qgis_server/wfs_getfeature_nobbox_post_1_1_0.txt b/tests/testdata/qgis_server/wfs_getfeature_nobbox_post_1_1_0.txt
new file mode 100644
index 000000000000..4de8144ecaaf
--- /dev/null
+++ b/tests/testdata/qgis_server/wfs_getfeature_nobbox_post_1_1_0.txt
@@ -0,0 +1,64 @@
+Content-Type: text/xml; subtype=gml/3.1.1; charset=utf-8
+
+<wfs:FeatureCollection xmlns:wfs="http://www.opengis.net/wfs" xmlns:ogc="http://www.opengis.net/ogc" xmlns:gml="http://www.opengis.net/gml" xmlns:ows="http://www.opengis.net/ows" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:qgs="http://www.qgis.org/gml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.1.0/wfs.xsd http://www.qgis.org/gml ?">
+<gml:boundedBy>
+ <gml:Envelope srsName="EPSG:4326">
+  <gml:lowerCorner>8 44</gml:lowerCorner>
+  <gml:upperCorner>9 45</gml:upperCorner>
+ </gml:Envelope>
+</gml:boundedBy>
+<gml:featureMember>
+ <qgs:testlayer gml:id="testlayer.0">
+  <gml:boundedBy>
+   <gml:Envelope srsName="EPSG:4326">
+    <gml:lowerCorner>8.20349634 44.90148253</gml:lowerCorner>
+    <gml:upperCorner>8.20349634 44.90148253</gml:upperCorner>
+   </gml:Envelope>
+  </gml:boundedBy>
+  <qgs:geometry>
+   <Point xmlns="http://www.opengis.net/gml" srsName="EPSG:4326">
+    <pos xmlns="http://www.opengis.net/gml" srsDimension="2">8.20349634 44.90148253</pos>
+   </Point>
+  </qgs:geometry>
+  <qgs:id>1</qgs:id>
+  <qgs:name>one</qgs:name>
+  <qgs:utf8nameè>one èé</qgs:utf8nameè>
+ </qgs:testlayer>
+</gml:featureMember>
+<gml:featureMember>
+ <qgs:testlayer gml:id="testlayer.1">
+  <gml:boundedBy>
+   <gml:Envelope srsName="EPSG:4326">
+    <gml:lowerCorner>8.20354699 44.90143568</gml:lowerCorner>
+    <gml:upperCorner>8.20354699 44.90143568</gml:upperCorner>
+   </gml:Envelope>
+  </gml:boundedBy>
+  <qgs:geometry>
+   <Point xmlns="http://www.opengis.net/gml" srsName="EPSG:4326">
+    <pos xmlns="http://www.opengis.net/gml" srsDimension="2">8.20354699 44.90143568</pos>
+   </Point>
+  </qgs:geometry>
+  <qgs:id>2</qgs:id>
+  <qgs:name>two</qgs:name>
+  <qgs:utf8nameè>two àò</qgs:utf8nameè>
+ </qgs:testlayer>
+</gml:featureMember>
+<gml:featureMember>
+ <qgs:testlayer gml:id="testlayer.2">
+  <gml:boundedBy>
+   <gml:Envelope srsName="EPSG:4326">
+    <gml:lowerCorner>8.20345931 44.90139484</gml:lowerCorner>
+    <gml:upperCorner>8.20345931 44.90139484</gml:upperCorner>
+   </gml:Envelope>
+  </gml:boundedBy>
+  <qgs:geometry>
+   <Point xmlns="http://www.opengis.net/gml" srsName="EPSG:4326">
+    <pos xmlns="http://www.opengis.net/gml" srsDimension="2">8.20345931 44.90139484</pos>
+   </Point>
+  </qgs:geometry>
+  <qgs:id>3</qgs:id>
+  <qgs:name>three</qgs:name>
+  <qgs:utf8nameè>three èé↓</qgs:utf8nameè>
+ </qgs:testlayer>
+</gml:featureMember>
+</wfs:FeatureCollection>
diff --git a/tests/testdata/qgis_server/wfs_getfeature_nobbox_post_urn4326.txt b/tests/testdata/qgis_server/wfs_getfeature_nobbox_post_urn4326.txt
new file mode 100644
index 000000000000..63afe6c48a68
--- /dev/null
+++ b/tests/testdata/qgis_server/wfs_getfeature_nobbox_post_urn4326.txt
@@ -0,0 +1,60 @@
+Content-Type: text/xml; subtype=gml/2.1.2; charset=utf-8
+
+<wfs:FeatureCollection xmlns:wfs="http://www.opengis.net/wfs" xmlns:ogc="http://www.opengis.net/ogc" xmlns:gml="http://www.opengis.net/gml" xmlns:ows="http://www.opengis.net/ows" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:qgs="http://www.qgis.org/gml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.0.0/wfs.xsd http://www.qgis.org/gml ?MAP=/home/ale/dev/QGIS/tests/testdata/qgis_server/test_project_wfs.qgs&amp;SERVICE=WFS&amp;VERSION=1.0.0&amp;REQUEST=DescribeFeatureType&amp;TYPENAME=testlayer&amp;OUTPUTFORMAT=XMLSCHEMA">
+<gml:boundedBy>
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+  <gml:coordinates cs="," ts=" ">8,44 9,45</gml:coordinates>
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+</gml:boundedBy>
+<gml:featureMember>
+ <qgs:testlayer fid="testlayer.0">
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+    <gml:coordinates cs="," ts=" ">8.20349634,44.90148253 8.20349634,44.90148253</gml:coordinates>
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+   <Point xmlns="http://www.opengis.net/gml" srsName="EPSG:4326">
+    <coordinates xmlns="http://www.opengis.net/gml" cs="," ts=" ">8.20349634,44.90148253</coordinates>
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+  </qgs:geometry>
+  <qgs:id>1</qgs:id>
+  <qgs:name>one</qgs:name>
+  <qgs:utf8nameè>one èé</qgs:utf8nameè>
+ </qgs:testlayer>
+</gml:featureMember>
+<gml:featureMember>
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+   <gml:Box srsName="EPSG:4326">
+    <gml:coordinates cs="," ts=" ">8.20354699,44.90143568 8.20354699,44.90143568</gml:coordinates>
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+   <Point xmlns="http://www.opengis.net/gml" srsName="EPSG:4326">
+    <coordinates xmlns="http://www.opengis.net/gml" cs="," ts=" ">8.20354699,44.90143568</coordinates>
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+  <qgs:utf8nameè>two àò</qgs:utf8nameè>
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+<gml:featureMember>
+ <qgs:testlayer fid="testlayer.2">
+  <gml:boundedBy>
+   <gml:Box srsName="EPSG:4326">
+    <gml:coordinates cs="," ts=" ">8.20345931,44.90139484 8.20345931,44.90139484</gml:coordinates>
+   </gml:Box>
+  </gml:boundedBy>
+  <qgs:geometry>
+   <Point xmlns="http://www.opengis.net/gml" srsName="EPSG:4326">
+    <coordinates xmlns="http://www.opengis.net/gml" cs="," ts=" ">8.20345931,44.90139484</coordinates>
+   </Point>
+  </qgs:geometry>
+  <qgs:id>3</qgs:id>
+  <qgs:name>three</qgs:name>
+  <qgs:utf8nameè>three èé↓</qgs:utf8nameè>
+ </qgs:testlayer>
+</gml:featureMember>
+</wfs:FeatureCollection>
diff --git a/tests/testdata/qgis_server/wfs_getfeature_srsname_post.txt b/tests/testdata/qgis_server/wfs_getfeature_srsname_post_1_0_0.txt
similarity index 100%
rename from tests/testdata/qgis_server/wfs_getfeature_srsname_post.txt
rename to tests/testdata/qgis_server/wfs_getfeature_srsname_post_1_0_0.txt
diff --git a/tests/testdata/qgis_server/wfs_getfeature_srsname_post_1_1_0.txt b/tests/testdata/qgis_server/wfs_getfeature_srsname_post_1_1_0.txt
new file mode 100644
index 000000000000..8530a8ad084b
--- /dev/null
+++ b/tests/testdata/qgis_server/wfs_getfeature_srsname_post_1_1_0.txt
@@ -0,0 +1,64 @@
+Content-Type: text/xml; subtype=gml/3.1.1; charset=utf-8
+
+<wfs:FeatureCollection xmlns:wfs="http://www.opengis.net/wfs" xmlns:ogc="http://www.opengis.net/ogc" xmlns:gml="http://www.opengis.net/gml" xmlns:ows="http://www.opengis.net/ows" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:qgs="http://www.qgis.org/gml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.1.0/wfs.xsd http://www.qgis.org/gml ?">
+<gml:boundedBy>
+ <gml:Envelope srsName="EPSG:4326">
+  <gml:lowerCorner>8 44</gml:lowerCorner>
+  <gml:upperCorner>9 45</gml:upperCorner>
+ </gml:Envelope>
+</gml:boundedBy>
+<gml:featureMember>
+ <qgs:testlayer gml:id="testlayer.0">
+  <gml:boundedBy>
+   <gml:Envelope srsName="EPSG:3857">
+    <gml:lowerCorner>913209.03579284 5606025.23730414</gml:lowerCorner>
+    <gml:upperCorner>913209.03579284 5606025.23730414</gml:upperCorner>
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+  <qgs:geometry>
+   <Point xmlns="http://www.opengis.net/gml" srsName="EPSG:3857">
+    <pos xmlns="http://www.opengis.net/gml" srsDimension="2">913209.03579284 5606025.23730414</pos>
+   </Point>
+  </qgs:geometry>
+  <qgs:id>1</qgs:id>
+  <qgs:name>one</qgs:name>
+  <qgs:utf8nameè>one èé</qgs:utf8nameè>
+ </qgs:testlayer>
+</gml:featureMember>
+<gml:featureMember>
+ <qgs:testlayer gml:id="testlayer.1">
+  <gml:boundedBy>
+   <gml:Envelope srsName="EPSG:3857">
+    <gml:lowerCorner>913214.67407005 5606017.87425818</gml:lowerCorner>
+    <gml:upperCorner>913214.67407005 5606017.87425818</gml:upperCorner>
+   </gml:Envelope>
+  </gml:boundedBy>
+  <qgs:geometry>
+   <Point xmlns="http://www.opengis.net/gml" srsName="EPSG:3857">
+    <pos xmlns="http://www.opengis.net/gml" srsDimension="2">913214.67407005 5606017.87425818</pos>
+   </Point>
+  </qgs:geometry>
+  <qgs:id>2</qgs:id>
+  <qgs:name>two</qgs:name>
+  <qgs:utf8nameè>two àò</qgs:utf8nameè>
+ </qgs:testlayer>
+</gml:featureMember>
+<gml:featureMember>
+ <qgs:testlayer gml:id="testlayer.2">
+  <gml:boundedBy>
+   <gml:Envelope srsName="EPSG:3857">
+    <gml:lowerCorner>913204.91280263 5606011.45647302</gml:lowerCorner>
+    <gml:upperCorner>913204.91280263 5606011.45647302</gml:upperCorner>
+   </gml:Envelope>
+  </gml:boundedBy>
+  <qgs:geometry>
+   <Point xmlns="http://www.opengis.net/gml" srsName="EPSG:3857">
+    <pos xmlns="http://www.opengis.net/gml" srsDimension="2">913204.91280263 5606011.45647302</pos>
+   </Point>
+  </qgs:geometry>
+  <qgs:id>3</qgs:id>
+  <qgs:name>three</qgs:name>
+  <qgs:utf8nameè>three èé↓</qgs:utf8nameè>
+ </qgs:testlayer>
+</gml:featureMember>
+</wfs:FeatureCollection>
diff --git a/tests/testdata/qgis_server/wfs_getfeature_srsname_post_1_1_0_urn.txt b/tests/testdata/qgis_server/wfs_getfeature_srsname_post_1_1_0_urn.txt
new file mode 100644
index 000000000000..f2ec396f1ce8
--- /dev/null
+++ b/tests/testdata/qgis_server/wfs_getfeature_srsname_post_1_1_0_urn.txt
@@ -0,0 +1,64 @@
+Content-Type: text/xml; subtype=gml/3.1.1; charset=utf-8
+
+<wfs:FeatureCollection xmlns:wfs="http://www.opengis.net/wfs" xmlns:ogc="http://www.opengis.net/ogc" xmlns:gml="http://www.opengis.net/gml" xmlns:ows="http://www.opengis.net/ows" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:qgs="http://www.qgis.org/gml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.1.0/wfs.xsd http://www.qgis.org/gml ?">
+<gml:boundedBy>
+ <gml:Envelope srsName="EPSG:4326">
+  <gml:lowerCorner>8 44</gml:lowerCorner>
+  <gml:upperCorner>9 45</gml:upperCorner>
+ </gml:Envelope>
+</gml:boundedBy>
+<gml:featureMember>
+ <qgs:testlayer gml:id="testlayer.0">
+  <gml:boundedBy>
+   <gml:Envelope srsName="urn:ogc:def:crs:EPSG::3857">
+    <gml:lowerCorner>913209.03579284 5606025.23730414</gml:lowerCorner>
+    <gml:upperCorner>913209.03579284 5606025.23730414</gml:upperCorner>
+   </gml:Envelope>
+  </gml:boundedBy>
+  <qgs:geometry>
+   <Point xmlns="http://www.opengis.net/gml" srsName="urn:ogc:def:crs:EPSG::3857">
+    <pos xmlns="http://www.opengis.net/gml" srsDimension="2">913209.03579284 5606025.23730414</pos>
+   </Point>
+  </qgs:geometry>
+  <qgs:id>1</qgs:id>
+  <qgs:name>one</qgs:name>
+  <qgs:utf8nameè>one èé</qgs:utf8nameè>
+ </qgs:testlayer>
+</gml:featureMember>
+<gml:featureMember>
+ <qgs:testlayer gml:id="testlayer.1">
+  <gml:boundedBy>
+   <gml:Envelope srsName="urn:ogc:def:crs:EPSG::3857">
+    <gml:lowerCorner>913214.67407005 5606017.87425818</gml:lowerCorner>
+    <gml:upperCorner>913214.67407005 5606017.87425818</gml:upperCorner>
+   </gml:Envelope>
+  </gml:boundedBy>
+  <qgs:geometry>
+   <Point xmlns="http://www.opengis.net/gml" srsName="urn:ogc:def:crs:EPSG::3857">
+    <pos xmlns="http://www.opengis.net/gml" srsDimension="2">913214.67407005 5606017.87425818</pos>
+   </Point>
+  </qgs:geometry>
+  <qgs:id>2</qgs:id>
+  <qgs:name>two</qgs:name>
+  <qgs:utf8nameè>two àò</qgs:utf8nameè>
+ </qgs:testlayer>
+</gml:featureMember>
+<gml:featureMember>
+ <qgs:testlayer gml:id="testlayer.2">
+  <gml:boundedBy>
+   <gml:Envelope srsName="urn:ogc:def:crs:EPSG::3857">
+    <gml:lowerCorner>913204.91280263 5606011.45647302</gml:lowerCorner>
+    <gml:upperCorner>913204.91280263 5606011.45647302</gml:upperCorner>
+   </gml:Envelope>
+  </gml:boundedBy>
+  <qgs:geometry>
+   <Point xmlns="http://www.opengis.net/gml" srsName="urn:ogc:def:crs:EPSG::3857">
+    <pos xmlns="http://www.opengis.net/gml" srsDimension="2">913204.91280263 5606011.45647302</pos>
+   </Point>
+  </qgs:geometry>
+  <qgs:id>3</qgs:id>
+  <qgs:name>three</qgs:name>
+  <qgs:utf8nameè>three èé↓</qgs:utf8nameè>
+ </qgs:testlayer>
+</gml:featureMember>
+</wfs:FeatureCollection>
diff --git a/tests/testdata/qgis_server/wfs_getfeature_start1_limit1_post.txt b/tests/testdata/qgis_server/wfs_getfeature_start1_limit1_post_1_0_0.txt
similarity index 100%
rename from tests/testdata/qgis_server/wfs_getfeature_start1_limit1_post.txt
rename to tests/testdata/qgis_server/wfs_getfeature_start1_limit1_post_1_0_0.txt
diff --git a/tests/testdata/qgis_server/wfs_getfeature_start1_limit1_post_1_1_0.txt b/tests/testdata/qgis_server/wfs_getfeature_start1_limit1_post_1_1_0.txt
new file mode 100644
index 000000000000..5296986f83d3
--- /dev/null
+++ b/tests/testdata/qgis_server/wfs_getfeature_start1_limit1_post_1_1_0.txt
@@ -0,0 +1,28 @@
+Content-Type: text/xml; subtype=gml/3.1.1; charset=utf-8
+
+<wfs:FeatureCollection xmlns:wfs="http://www.opengis.net/wfs" xmlns:ogc="http://www.opengis.net/ogc" xmlns:gml="http://www.opengis.net/gml" xmlns:ows="http://www.opengis.net/ows" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:qgs="http://www.qgis.org/gml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.1.0/wfs.xsd http://www.qgis.org/gml ?">
+<gml:boundedBy>
+ <gml:Envelope srsName="EPSG:4326">
+  <gml:lowerCorner>8 44</gml:lowerCorner>
+  <gml:upperCorner>9 45</gml:upperCorner>
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+</gml:boundedBy>
+<gml:featureMember>
+ <qgs:testlayer gml:id="testlayer.1">
+  <gml:boundedBy>
+   <gml:Envelope srsName="EPSG:4326">
+    <gml:lowerCorner>8.20354699 44.90143568</gml:lowerCorner>
+    <gml:upperCorner>8.20354699 44.90143568</gml:upperCorner>
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+  <qgs:geometry>
+   <Point xmlns="http://www.opengis.net/gml" srsName="EPSG:4326">
+    <pos xmlns="http://www.opengis.net/gml" srsDimension="2">8.20354699 44.90143568</pos>
+   </Point>
+  </qgs:geometry>
+  <qgs:id>2</qgs:id>
+  <qgs:name>two</qgs:name>
+  <qgs:utf8nameè>two àò</qgs:utf8nameè>
+ </qgs:testlayer>
+</gml:featureMember>
+</wfs:FeatureCollection>
diff --git a/tests/testdata/qgis_server/wfs_getfeature_startindex2_post.txt b/tests/testdata/qgis_server/wfs_getfeature_startindex2_post_1_0_0.txt
similarity index 100%
rename from tests/testdata/qgis_server/wfs_getfeature_startindex2_post.txt
rename to tests/testdata/qgis_server/wfs_getfeature_startindex2_post_1_0_0.txt
diff --git a/tests/testdata/qgis_server/wfs_getfeature_startindex2_post_1_1_0.txt b/tests/testdata/qgis_server/wfs_getfeature_startindex2_post_1_1_0.txt
new file mode 100644
index 000000000000..4fda9ef5f154
--- /dev/null
+++ b/tests/testdata/qgis_server/wfs_getfeature_startindex2_post_1_1_0.txt
@@ -0,0 +1,28 @@
+Content-Type: text/xml; subtype=gml/3.1.1; charset=utf-8
+
+<wfs:FeatureCollection xmlns:wfs="http://www.opengis.net/wfs" xmlns:ogc="http://www.opengis.net/ogc" xmlns:gml="http://www.opengis.net/gml" xmlns:ows="http://www.opengis.net/ows" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:qgs="http://www.qgis.org/gml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.1.0/wfs.xsd http://www.qgis.org/gml ?">
+<gml:boundedBy>
+ <gml:Envelope srsName="EPSG:4326">
+  <gml:lowerCorner>8 44</gml:lowerCorner>
+  <gml:upperCorner>9 45</gml:upperCorner>
+ </gml:Envelope>
+</gml:boundedBy>
+<gml:featureMember>
+ <qgs:testlayer gml:id="testlayer.2">
+  <gml:boundedBy>
+   <gml:Envelope srsName="EPSG:4326">
+    <gml:lowerCorner>8.20345931 44.90139484</gml:lowerCorner>
+    <gml:upperCorner>8.20345931 44.90139484</gml:upperCorner>
+   </gml:Envelope>
+  </gml:boundedBy>
+  <qgs:geometry>
+   <Point xmlns="http://www.opengis.net/gml" srsName="EPSG:4326">
+    <pos xmlns="http://www.opengis.net/gml" srsDimension="2">8.20345931 44.90139484</pos>
+   </Point>
+  </qgs:geometry>
+  <qgs:id>3</qgs:id>
+  <qgs:name>three</qgs:name>
+  <qgs:utf8nameè>three èé↓</qgs:utf8nameè>
+ </qgs:testlayer>
+</gml:featureMember>
+</wfs:FeatureCollection>