Add Vimeo to the list of supported providers

src/OpenIddict.Client.WebIntegration/OpenIddictClientWebIntegrationHandlers.Userinfo.cs

@@ -165,11 +165,12 @@ public static partial class OpenIddictClientWebIntegrationHandlers
 
                 response.Content.Headers.ContentType = context.Registration.ProviderName switch
                 {
-                    // Mixcloud returns JSON-formatted contents declared as "text/javascript".
-                    Providers.Mixcloud => new MediaTypeHeaderValue(MediaTypes.Json)
-                    {
-                        CharSet = Charsets.Utf8
-                    },
+                    Providers.Mixcloud or // Mixcloud returns JSON-formatted contents declared as "text/javascript".
+                    Providers.Vimeo // Vimeo returns JSON-formatted contents declared as "application/vnd.vimeo.user+json".
+                        => new MediaTypeHeaderValue(MediaTypes.Json)
+                        {
+                            CharSet = Charsets.Utf8
+                        },
 
                     _ => response.Content.Headers.ContentType
                 };

src/OpenIddict.Client.WebIntegration/OpenIddictClientWebIntegrationProviders.xml

@@ -497,6 +497,22 @@
     </Setting>
   </Provider>
 
+  <!--
+                                            ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
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+                                            ███ █ ███ ███ █ █ ██ ▄▄▄██ ███ ██
+                                            ███▄▀▄██▀ ▀██ ███ ██ ▀▀▀██ ▀▀▀ ██
+                                            ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
+  -->
+
+  <Provider Name="Vimeo" Documentation="https://developer.vimeo.com/api/authentication">
+    <Environment Issuer="https://api.vimeo.com/">
+      <Configuration AuthorizationEndpoint="https://api.vimeo.com/oauth/authorize"
+                     TokenEndpoint="https://api.vimeo.com/oauth/access_token"
+                     UserinfoEndpoint="https://api.vimeo.com/me" />
+    </Environment>
+  </Provider>
+
   <!--
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