"/marketing//mailtemplate/content/**" -> "/marketing/mailtemplate/content/**" 수정

src/main/java/com/style24/admin/support/config/TsaWebMvcConfig.java

@@ -49,7 +49,7 @@ public class TsaWebMvcConfig implements WebMvcConfigurer {
 			"/", "/index", "/signin", "/image/**", "/ux/**", "/smartEditor/**",
 			"/error/**", "/data/**", "/login", "/logout",
 			"/pos/**", "/goods/naverEP/download", "/shoplinker/**",
-			"/marketing//mailtemplate/content/**"
+			"/marketing/mailtemplate/content/**"
 		};
 
 		registry.addInterceptor(defaultInterceptor)