Fix sameSite (Traefik v2)

docs/content/routing/providers/consul-catalog.md

@@ -225,6 +225,14 @@ you'd add the tag `traefik.http.services.{name-of-your-choice}.loadbalancer.pass
     traefik.http.services.myservice.loadbalancer.sticky.cookie.secure=true
     ```
 
+??? info "`traefik.http.services.<service_name>.loadbalancer.sticky.cookie.samesite`"
+    
+    See [sticky sessions](../services/index.md#sticky-sessions) for more information.
+    
+    ```yaml
+    traefik.http.services.myservice.loadbalancer.sticky.cookie.samesite=none
+    ```
+
 ??? info "`traefik.http.services.<service_name>.loadbalancer.responseforwarding.flushinterval`"
     <!-- TODO doc responseforwarding in services page -->
     

docs/content/routing/providers/docker.md

@@ -358,6 +358,14 @@ you'd add the label `traefik.http.services.<name-of-your-choice>.loadbalancer.pa
     - "traefik.http.services.myservice.loadbalancer.sticky.cookie.secure=true"
     ```
 
+??? info "`traefik.http.services.<service_name>.loadbalancer.sticky.cookie.samesite`"
+    
+    See [sticky sessions](../services/index.md#sticky-sessions) for more information.
+    
+    ```yaml
+    - "traefik.http.services.myservice.loadbalancer.sticky.cookie.samesite=none"
+    ```
+
 ??? info "`traefik.http.services.<service_name>.loadbalancer.responseforwarding.flushinterval`"
 
     See [response forwarding](../services/index.md#response-forwarding) for more information.

docs/content/routing/providers/kubernetes-crd.md

@@ -195,6 +195,7 @@ Register the `IngressRoute` kind in the Kubernetes cluster before creating `Ingr
               httpOnly: true
               name: cookie
               secure: true
+              sameSite: none
           strategy: RoundRobin
           weight: 10
       tls:                              # [9]

docs/content/routing/providers/marathon.md

@@ -256,6 +256,14 @@ For example, to change the passHostHeader behavior, you'd add the label `"traefi
     "traefik.http.services.myservice.loadbalancer.sticky.cookie.secure": "true"
     ```
 
+??? info "`traefik.http.services.<service_name>.loadbalancer.sticky.cookie.samesite`"
+    
+    See [sticky sessions](../services/index.md#sticky-sessions) for more information.
+    
+    ```json
+    "traefik.http.services.myservice.loadbalancer.sticky.cookie.samesite": "none"
+    ```
+
 ??? info "`traefik.http.services.<service_name>.loadbalancer.responseforwarding.flushinterval`"
     
     See [response forwarding](../services/index.md#response-forwarding) for more information.

docs/content/routing/providers/rancher.md

@@ -262,6 +262,14 @@ you'd add the label `traefik.http.services.{name-of-your-choice}.loadbalancer.pa
     - "traefik.http.services.myservice.loadbalancer.sticky.cookie.secure=true"
     ```
 
+??? info "`traefik.http.services.<service_name>.loadbalancer.sticky.cookie.samesite`"
+    
+    See [sticky sessions](../services/index.md#sticky-sessions) for more information.
+    
+    ```yaml
+    - "traefik.http.services.myservice.loadbalancer.sticky.cookie.samesite=none"
+    ```
+
 ??? info "`traefik.http.services.<service_name>.loadbalancer.responseforwarding.flushinterval`"
     
     See [response forwarding](../services/index.md#response-forwarding) for more information.

docs/content/routing/services/index.md

@@ -156,9 +156,12 @@ On subsequent requests, the client is forwarded to the same server.
 
     The default cookie name is an abbreviation of a sha1 (ex: `_1d52e`).
 
-!!! info "Secure & HTTPOnly flags"
+!!! info "Secure & HTTPOnly & SameSite flags"
 
-    By default, the affinity cookie is created without those flags. One however can change that through configuration.
+    By default, the affinity cookie is created without those flags.
+    One however can change that through configuration.
+    
+    `SameSite` can be `none`, `lax`, `strict` or empty.
 
 ??? example "Adding Stickiness -- Using the [File Provider](../../providers/file.md)"
 
@@ -189,6 +192,7 @@ On subsequent requests, the client is forwarded to the same server.
           name = "my_sticky_cookie_name"
           secure = true
           httpOnly = true
+          sameSite = "none"
     ```
 
     ```yaml tab="YAML"