Allow CORS in ranking API

pages/character/ranking.go

@@ -10,6 +10,7 @@ import (
 
 // Ranking returns the ranking information for the character via the API.
 func Ranking(ctx *aero.Context) string {
+	// Check character ID
 	id := ctx.Get("id")
 	_, err := arn.GetCharacter(id)
 
@@ -17,17 +18,24 @@ func Ranking(ctx *aero.Context) string {
 		return ctx.Error(http.StatusNotFound, "Character not found", err)
 	}
 
+	// Sort characters
 	characters := arn.FilterCharacters(func(character *arn.Character) bool {
 		return !character.IsDraft
 	})
 
 	arn.SortCharactersByLikes(characters)
 
+	// Allow CORS
+	ctx.Response().Header().Set("Access-Control-Allow-Origin", "*")
+
+	// Return ranking
 	for index, character := range characters {
 		if character.ID == id {
 			return strconv.Itoa(index + 1)
 		}
 	}
 
+	// If the ID wasn't found for some reason,
+	// return an empty string.
 	return ""
 }