diff --git a/BTCPayServer/Controllers/InvoiceController.UI.cs b/BTCPayServer/Controllers/InvoiceController.UI.cs
index ce0a682d8..a18c441e3 100644
--- a/BTCPayServer/Controllers/InvoiceController.UI.cs
+++ b/BTCPayServer/Controllers/InvoiceController.UI.cs
@@ -273,6 +273,7 @@ namespace BTCPayServer.Controllers
             var model = new PaymentModel()
             {
                 CryptoCode = network.CryptoCode,
+                RootPath = this.Request.PathBase.Value.WithTrailingSlash(),
                 PaymentMethodId = paymentMethodId.ToString(),
                 PaymentMethodName = GetDisplayName(paymentMethodId, network),
                 CryptoImage = GetImage(paymentMethodId, network),
@@ -345,9 +346,8 @@ namespace BTCPayServer.Controllers
 
         private string GetImage(PaymentMethodId paymentMethodId, BTCPayNetwork network)
         {
-            var res = paymentMethodId.PaymentType == PaymentTypes.BTCLike ?
-                Url.Content(network.CryptoImagePath) : Url.Content(network.LightningImagePath);
-            return "/" + res;
+            return paymentMethodId.PaymentType == PaymentTypes.BTCLike ?
+                this.Request.GetRelativePathOrAbsolute(network.CryptoImagePath) : this.Request.GetRelativePathOrAbsolute(network.LightningImagePath);
         }
 
         private string OrderAmountFromInvoice(string cryptoCode, ProductInformation productInformation)
diff --git a/BTCPayServer/Models/InvoicingModels/PaymentModel.cs b/BTCPayServer/Models/InvoicingModels/PaymentModel.cs
index 68135486a..e2493c338 100644
--- a/BTCPayServer/Models/InvoicingModels/PaymentModel.cs
+++ b/BTCPayServer/Models/InvoicingModels/PaymentModel.cs
@@ -64,5 +64,6 @@ namespace BTCPayServer.Models.InvoicingModels
         public bool CoinSwitchEnabled { get; set; }
         public string CoinSwitchMode { get; set; }
         public string CoinSwitchMerchantId { get; set; }
+        public string RootPath { get; set; }
     }
 }
diff --git a/BTCPayServer/Views/Invoice/Checkout.cshtml b/BTCPayServer/Views/Invoice/Checkout.cshtml
index 18d1b2065..587f877f9 100644
--- a/BTCPayServer/Views/Invoice/Checkout.cshtml
+++ b/BTCPayServer/Views/Invoice/Checkout.cshtml
@@ -126,7 +126,7 @@
         .use(window.i18nextXHRBackend)
         .init({
             backend: {
-                loadPath: '/locales/{{lng}}.json'
+                loadPath: '@(Model.RootPath)locales/{{lng}}.json'
             },
             lng: startingLanguage,
             fallbackLng: fallbackLanguage,