diff --git a/src/Ipv6Helpers.cpp b/src/Ipv6Helpers.cpp
index a3bad9a..404a71f 100644
--- a/src/Ipv6Helpers.cpp
+++ b/src/Ipv6Helpers.cpp
@@ -539,7 +539,7 @@ static std::string GetNonLinkLocalAddressForInterface(const std::string &name)
     }
     return result;
 }
-static std::string GetNonLinkLocalAddressForIp4Interface(const std::string &name)
+static std::string GetIp4NonLinkLocalAddressForInterface(const std::string &name)
 {
     struct ifaddrs *ifap = nullptr;
     if (getifaddrs(&ifap) != 0)
@@ -694,13 +694,13 @@ std::string pipedal::GetNonLinkLocalAddress(const std::string &fromAddress)
                 int8_t *pAddr = (int8_t *)&inetAddr6;
                 uint32_t remoteAddress = htonl(*(int32_t *)(pAddr + 12));
                 std::string interfaceName = GetInterfaceForIp4Address(remoteAddress);
-                result = GetNonLinkLocalAddressForIp4Interface(interfaceName);
+                result = GetIp4NonLinkLocalAddressForInterface(interfaceName);
             }
             else
             {
 
                 std::string interfaceName = GetInterfaceForIp6Address(inetAddr6);
-                result = GetNonLinkLocalAddressForInterface(interfaceName);
+                result = GetIp4NonLinkLocalAddressForInterface(interfaceName);
             }
         }
     }
@@ -713,7 +713,7 @@ std::string pipedal::GetNonLinkLocalAddress(const std::string &fromAddress)
 
 std::string pipedal::GetInterfaceIpv4Address(const std::string &interfaceName)
 {
-    return GetNonLinkLocalAddressForIp4Interface(interfaceName);
+    return GetIp4NonLinkLocalAddressForInterface(interfaceName);
 }
 
 // std::string getNonLinkLocalAddress(const std::string&address, const std::string&interface)
diff --git a/vite/src/pipedal/t3k/tone3000-client.ts b/vite/src/pipedal/t3k/tone3000-client.ts
index c1c8e28..a7aa7de 100644
--- a/vite/src/pipedal/t3k/tone3000-client.ts
+++ b/vite/src/pipedal/t3k/tone3000-client.ts
@@ -179,7 +179,7 @@ export async function startSelectFlowPopup(
     const url = buildAuthorizeUrl(publishableKey, redirectUri, extra, pkce);
 
     if (T3K_DEBUG) {
-        console.debug("PiPedal startSelectFlowPopup URL:" + url + "(from buildAuthorizeUrl)");
+        console.debug("PiPedal startSelectFlowPopup URL:" + url + " (from buildAuthorizeUrl)");
     }
     const width = options?.width ?? 480;
     const height = options?.height ?? 700;
@@ -476,7 +476,8 @@ export async function handleOAuthCallback(
     const url = new URL(responseUri);
     const params = new URLSearchParams(url.search);
     const code = params.get('code');
-    const error = params.get('error');
+    let error = params.get('error');
+    const error_description = params.get('error_description');
     const returnedState = params.get('state');
     const toneId = params.get('tone_id') ?? undefined;
     const modelId = params.get('model_id') ?? undefined;
@@ -498,6 +499,10 @@ export async function handleOAuthCallback(
     if (canceled && !code) {
         return { ok: false, error: 'canceled', canceled: true };
     }
+    // build full error description
+    if (error && error_description) {
+        error = `${error}: ${error_description}`;
+    }
 
     // Access denied — e.g. model is private and user clicked "Back"
     if (error) {