better feedback if forgot to activate browser support

BTCPayServer/BTCPayServer.csproj

@@ -2,7 +2,7 @@
   <PropertyGroup>
     <OutputType>Exe</OutputType>
     <TargetFramework>netcoreapp2.0</TargetFramework>
-		<Version>1.0.1.23</Version>
+		<Version>1.0.1.24</Version>
     <NoWarn>NU1701</NoWarn>
   </PropertyGroup>
   <ItemGroup>

BTCPayServer/Views/Stores/AddDerivationScheme.cshtml

@@ -31,7 +31,7 @@
                     <input asp-for="DerivationScheme" class="form-control" />
                     <span asp-validation-for="DerivationScheme" class="text-danger"></span>
                     <p id="no-ledger-info" class="form-text text-muted"  style="display: none;">
-                        No ledger wallet detected. If you own one, use chrome, open the app, activates the <a href="https://support.ledgerwallet.com/hc/en-us/articles/115005198565-What-is-the-Browser-support-option-made-for-">Browser support</a>, and refresh this page.
+                        No ledger wallet detected. If you own one, use chrome, open the app, activate the <a href="https://support.ledgerwallet.com/hc/en-us/articles/115005198565-What-is-the-Browser-support-option-made-for-">Browser support</a>, and refresh this page.
                     </p>
                     <p id="ledger-info" class="form-text text-muted" style="display: none;">
                         <span>A ledger wallet is detected, please use our <a id="ledger-info-recommended" href="#">recommended choice</a></span>

BTCPayServer/wwwroot/js/StoreAddDerivationScheme.js

@@ -10,7 +10,7 @@
     function Write(prefix, type, message) {
         if (type === "error") {
             $("#no-ledger-info").css("display", "block");
-            $("#ledger-info").css("display", "none");
+            $("#ledger-in   fo").css("display", "none");
         }
     }
 
@@ -34,6 +34,8 @@
         bridge.sendCommand("getxpub", "cryptoCode=" + cryptoCode)
             .catch(function (reason) { Write('check', 'error', reason); })
             .then(function (result) {
+                if (!result)
+                    return;
                 if (result.error) {
                     Write('check', 'error', result.error);
                     return;
@@ -53,9 +55,15 @@
                 Write('hw', 'error', 'U2F or Websocket are not supported by this browser');
             }
             else {
-                bridge.sendCommand('test')
-                    .catch(function (reason) { Write('hw', 'error', reason); })
+                bridge.sendCommand('test', null, 5)
+                    .catch(function (reason) {
+                        if (reason.message === "Sign failed")
+                            reason = "Have you forgot to activate browser support in your ledger app?";
+                        Write('hw', 'error', reason);
+                    })
                     .then(function (result) {
+                        if (!result)
+                            return;
                         if (result.error) {
                             Write('hw', 'error', result.error);
                         } else {

BTCPayServer/wwwroot/js/StoreWallet.js

@@ -45,6 +45,8 @@
                 confirmButton.removeClass("disabled");
             })
             .then(function (result) {
+                if (!result)
+                    return;
                 confirmButton.prop("disabled", false);
                 confirmButton.removeClass("disabled");
                 if (result.error) {
@@ -84,6 +86,8 @@
         bridge.sendCommand("getinfo", "cryptoCode=" + cryptoCode)
             .catch(function (reason) { Write('check', 'error', reason); })
             .then(function (result) {
+                if (!result)
+                    return;
                 if (result.error) {
                     Write('check', 'error', result.error);
                     return;
@@ -104,9 +108,16 @@
                 Write('hw', 'error', 'U2F or Websocket are not supported by this browser');
             }
             else {
-                bridge.sendCommand('test')
-                    .catch(function (reason) { Write('hw', 'error', reason); })
+                bridge.sendCommand('test', null, 5)
+                    .catch(function (reason)
+                    {
+                        if (reason.message === "Sign failed")
+                            reason = "Have you forgot to activate browser support in your ledger app?";
+                        Write('hw', 'error', reason);
+                    })
                     .then(function (result) {
+                        if (!result)
+                            return;
                         if (result.error) {
                             Write('hw', 'error', result.error);
                         } else {