Updates

Author: waldekmastykarz

.github/skills/validate-devproxy-sample/SKILL.md

@@ -215,6 +215,30 @@ Acceptable curl when:
 - Single request/response
 - Quick verification
 
+### 10. URL Domain Validation
+
+**Check**: Do URLs use proxy-friendly domains?
+
+**Avoid these TLDs** — they're often excluded from system proxy settings:
+- `.local` — Reserved for mDNS/Bonjour, typically bypasses proxy
+- `.localhost` — Loopback, excluded by most systems
+- `.internal` — Often excluded in enterprise environments
+- `.test` — Reserved TLD, may have issues
+
+**Use instead:**
+- `.contoso.com` — Microsoft's example domain (safe, won't resolve)
+- `.example.com` — IANA reserved for documentation
+- `.fabrikam.com` — Another Microsoft example domain
+- Real API domains you're mocking
+
+**Why this matters**: When browsers/apps detect `.local` domains, they often skip the proxy entirely, making Dev Proxy unable to intercept requests.
+
+**Check in files:**
+- `urlsToWatch` in `devproxyrc.json`
+- `baseUrl` in CRUD API files
+- API URLs in frontend code (JavaScript, HTML)
+- Mock response URLs
+
 ## Common Mistakes Summary
 
 | Mistake | How to Fix |
@@ -230,6 +254,7 @@ Acceptable curl when:
 | curl without proxy | Add `-ikx http://127.0.0.1:8000` |
 | Wrong schema type | Match schema to file purpose |
 | Missing tracking pixel | Add at end of README |
+| Using `.local` TLD | Change to `.contoso.com` or similar |
 
 ## Validation Script
 
@@ -281,4 +306,5 @@ Before creating a PR:
 8. [ ] curl commands include proxy flag
 9. [ ] README has tracking pixel
 10. [ ] Badge version matches PROXY VERSION
-11. [ ] VS Code shows no Problems
+11. [ ] URLs don't use `.local` or other excluded TLDs
+12. [ ] VS Code shows no Problems

samples/full-stack-no-backend/.devproxy/cors-mocks.json

@@ -0,0 +1,20 @@
+{
+  "$schema": "https://raw.githubusercontent.com/dotnet/dev-proxy/main/schemas/v2.1.0/mockresponseplugin.mocksfile.schema.json",
+  "mocks": [
+    {
+      "request": {
+        "url": "https://api.contoso.com/*",
+        "method": "OPTIONS"
+      },
+      "response": {
+        "statusCode": 204,
+        "headers": [
+          { "name": "Access-Control-Allow-Origin", "value": "*" },
+          { "name": "Access-Control-Allow-Methods", "value": "GET, POST, PATCH, DELETE, OPTIONS" },
+          { "name": "Access-Control-Allow-Headers", "value": "Content-Type, x-api-key" },
+          { "name": "Access-Control-Max-Age", "value": "86400" }
+        ]
+      }
+    }
+  ]
+}

samples/full-stack-no-backend/.devproxy/devproxyrc.json

@@ -1,6 +1,12 @@
 {
-  "$schema": "https://raw.githubusercontent.com/dotnet/dev-proxy/main/schemas/v2.0.0/rc.schema.json",
+  "$schema": "https://raw.githubusercontent.com/dotnet/dev-proxy/main/schemas/v2.1.0/rc.schema.json",
   "plugins": [
+    {
+      "name": "MockResponsePlugin",
+      "enabled": true,
+      "pluginPath": "~appFolder/plugins/DevProxy.Plugins.dll",
+      "configSection": "corsPlugin"
+    },
     {
       "name": "LatencyPlugin",
       "enabled": true,
@@ -26,15 +32,19 @@
     }
   ],
   "urlsToWatch": [
-    "https://api.tasks.local/*"
+    "https://api.contoso.com/*"
   ],
+  "corsPlugin": {
+    "$schema": "https://raw.githubusercontent.com/dotnet/dev-proxy/main/schemas/v2.1.0/mockresponseplugin.schema.json",
+    "mocksFile": "cors-mocks.json"
+  },
   "latencyPlugin": {
-    "$schema": "https://raw.githubusercontent.com/dotnet/dev-proxy/main/schemas/v2.0.0/latencyplugin.schema.json",
+    "$schema": "https://raw.githubusercontent.com/dotnet/dev-proxy/main/schemas/v2.1.0/latencyplugin.schema.json",
     "minMs": 200,
     "maxMs": 800
   },
   "authPlugin": {
-    "$schema": "https://raw.githubusercontent.com/dotnet/dev-proxy/main/schemas/v2.0.0/authplugin.schema.json",
+    "$schema": "https://raw.githubusercontent.com/dotnet/dev-proxy/main/schemas/v2.1.0/authplugin.schema.json",
     "type": "apiKey",
     "apiKey": {
       "parameters": [
@@ -49,7 +59,7 @@
     }
   },
   "tasksApi": {
-    "$schema": "https://raw.githubusercontent.com/dotnet/dev-proxy/main/schemas/v2.0.0/crudapiplugin.schema.json",
+    "$schema": "https://raw.githubusercontent.com/dotnet/dev-proxy/main/schemas/v2.1.0/crudapiplugin.schema.json",
     "apiFile": "tasks-api.json"
   }
 }

samples/full-stack-no-backend/.devproxy/tasks-api.json

@@ -1,7 +1,8 @@
 {
-  "$schema": "https://raw.githubusercontent.com/dotnet/dev-proxy/main/schemas/v2.0.0/crudapiplugin.apifile.schema.json",
-  "baseUrl": "https://api.tasks.local/tasks",
+  "$schema": "https://raw.githubusercontent.com/dotnet/dev-proxy/main/schemas/v2.1.0/crudapiplugin.apifile.schema.json",
+  "baseUrl": "https://api.contoso.com/tasks",
   "dataFile": "tasks-data.json",
+  "enableCors": true,
   "actions": [
     {
       "action": "getAll"

samples/full-stack-no-backend/README.md

@@ -14,7 +14,7 @@ The sample includes:
 
 ## Compatibility
 
-![Dev Proxy v2.0.0](https://aka.ms/devproxy/badge/v2.0.0)
+![Dev Proxy v2.1.0](https://aka.ms/devproxy/badge/v2.1.0)
 
 ## Contributors
 
@@ -24,7 +24,7 @@ The sample includes:
 
 Version|Date|Comments
 -------|----|--------
-1.0|January 10, 2026|Initial release
+1.0.0|January 19, 2026|Initial release
 
 ## Prerequisites
 

samples/full-stack-no-backend/assets/sample.json

@@ -10,7 +10,7 @@
       "Demonstrates building a complete task manager application with zero backend using Dev Proxy. Features a vanilla JavaScript frontend with full CRUD operations, API key authentication, realistic latency simulation, and Chrome DevTools integration."
     ],
     "creationDateTime": "2026-01-10",
-    "updateDateTime": "2026-01-10",
+    "updateDateTime": "2026-01-19",
     "products": [
       "Dev Proxy"
     ],
@@ -25,15 +25,15 @@
       },
       {
         "key": "MOCKS",
-        "value": "Yes"
+        "value": "No"
       },
       {
         "key": "PLUGIN",
         "value": "No"
       },
       {
         "key": "PROXY VERSION",
-        "value": "v2.0.0"
+        "value": "v2.1.0"
       }
     ],
     "thumbnails": [

samples/full-stack-no-backend/assets/screenshot.png

@@ -398,7 +398,7 @@ <h3>Tasks <span class="latency-indicator" id="latencyIndicator"></span></h3>
   </div>
 
   <script>
-    const API_BASE = 'https://api.tasks.local/tasks';
+    const API_BASE = 'https://api.contoso.com/tasks';
     let apiKey = 'dev-proxy-demo-key';
     let isConnected = false;
     let nextId = 6;