Added environments for http requests

http-requests/calculate-result.http

@@ -1,4 +1,4 @@
-POST http://localhost:12000/wahlrecht/v1/calculate
+POST {{backend}}/wahlrecht/v1/calculate
 Content-Type: application/json
 
 {

http-requests/get-elections.http

@@ -0,0 +1,2 @@
+GET {{backend}}/wahlrecht/v1/elections
+Content-Type: application/json

http-requests/http-client.env.json

@@ -0,0 +1,8 @@
+{
+  "dev": {
+    "backend": "http://localhost:12000"
+  },
+  "prod" : {
+    "backend": "https://api.2martens.de"
+  }
+}

module-server/src/main/kotlin/de/twomartens/wahlrecht/configuration/WebConfiguration.kt

@@ -16,8 +16,8 @@ open class WebConfiguration(private val headerInterceptorRest: HeaderInterceptor
     override fun addCorsMappings(registry: CorsRegistry) {
         val registration = registry.addMapping("/**")
         registration.allowedMethods(
-            HttpMethod.GET.name(), HttpMethod.POST.name(),
-            HttpMethod.PUT.name(), HttpMethod.OPTIONS.name()
+                HttpMethod.GET.name(), HttpMethod.POST.name(),
+                HttpMethod.PUT.name(), HttpMethod.HEAD.name()
         )
         registration.allowCredentials(true)
         registration.allowedOrigins(