Add invisible-separator precedence coverage and docs example

Co-authored-by: Eric Allam <eric@trigger.dev>

docs/tasks/streams.mdx

@@ -710,6 +710,7 @@ Examples of ordering:
 - `ftp://example.com?x=1` → `baseURL must use http or https protocol`
 - `https://user:pass@example.com?x=1` → `baseURL must not include query parameters or hash fragments`
 - `ftp://user:pass@example.com/in valid?x=1` → `baseURL must not contain internal whitespace characters`
+- `ftp://user:pass@example.com/\u2060invalid?x=1#fragment` → `baseURL must not contain internal whitespace characters`
 
 For richer TypeScript ergonomics in app code, `@trigger.dev/ai` also exports:
 

packages/ai/README.md

@@ -217,6 +217,7 @@ Examples of ordering:
 - `ftp://example.com?x=1` → `baseURL must use http or https protocol`
 - `https://user:pass@example.com?x=1` → `baseURL must not include query parameters or hash fragments`
 - `ftp://user:pass@example.com/in valid?x=1` → `baseURL must not contain internal whitespace characters`
+- `ftp://user:pass@example.com/\u2060invalid?x=1#fragment` → `baseURL must not contain internal whitespace characters`
 
 ## `ai.tool(...)` example
 

packages/ai/src/chatTransport.test.ts

@@ -1094,6 +1094,17 @@ describe("TriggerChatTransport", function () {
     }).toThrowError("baseURL must not contain internal whitespace characters");
   });
 
+  it("prioritizes invisible-separator validation over protocol/query/hash/credential validation", function () {
+    expect(function () {
+      new TriggerChatTransport({
+        task: "chat-task",
+        accessToken: "pk_trigger",
+        baseURL: "ftp://user:pass@example.com/\u2060invalid?query=1#fragment",
+        stream: "chat-stream",
+      });
+    }).toThrowError("baseURL must not contain internal whitespace characters");
+  });
+
   it("prioritizes query/hash validation over credential validation", function () {
     expect(function () {
       new TriggerChatTransport({
@@ -3899,6 +3910,17 @@ describe("TriggerChatTransport", function () {
     }).toThrowError("baseURL must not contain internal whitespace characters");
   });
 
+  it("prioritizes invisible-separator validation over protocol/query/hash/credential validation in factory", function () {
+    expect(function () {
+      createTriggerChatTransport({
+        task: "chat-task",
+        accessToken: "pk_trigger",
+        baseURL: "ftp://user:pass@example.com/\u2060invalid?query=1#fragment",
+        stream: "chat-stream",
+      });
+    }).toThrowError("baseURL must not contain internal whitespace characters");
+  });
+
   it("prioritizes query/hash validation over credential validation in factory", function () {
     expect(function () {
       createTriggerChatTransport({