diff --git a/src/main/external-url-policy.ts b/src/main/external-url-policy.ts
index 18c3dc41..4f85ac7f 100644
--- a/src/main/external-url-policy.ts
+++ b/src/main/external-url-policy.ts
@@ -47,7 +47,7 @@ export function classifyExternalUrl(rawUrl: string): ExternalUrlDecision {
   }
   const parsed = new URL(normalized);
   const host = parsed.hostname.toLowerCase();
-  if (TRUSTED_EXTERNAL_HOSTS.has(host)) {
+  if (parsed.protocol === "https:" && TRUSTED_EXTERNAL_HOSTS.has(host)) {
     return { kind: "trusted", url: normalized, host };
   }
   return { kind: "confirm", url: normalized, host };
diff --git a/tests/unit/external-url-policy.test.ts b/tests/unit/external-url-policy.test.ts
index 6e4db9d8..16ff38a9 100644
--- a/tests/unit/external-url-policy.test.ts
+++ b/tests/unit/external-url-policy.test.ts
@@ -17,6 +17,7 @@ describe("external URL policy", () => {
 
   it("separates trusted hosts from confirmation hosts", () => {
     expect(classifyExternalUrl("https://github.com/acme/repo")).toMatchObject({ kind: "trusted", host: "github.com" });
+    expect(classifyExternalUrl("http://github.com/acme/repo")).toMatchObject({ kind: "confirm", host: "github.com" });
     expect(classifyExternalUrl("https://example.com/report")).toMatchObject({ kind: "confirm", host: "example.com" });
   });
 });
diff --git a/tests/unit/ipc-open-work-product-url-policy.test.ts b/tests/unit/ipc-open-work-product-url-policy.test.ts
index b5c0516a..50b6d0cd 100644
--- a/tests/unit/ipc-open-work-product-url-policy.test.ts
+++ b/tests/unit/ipc-open-work-product-url-policy.test.ts
@@ -87,7 +87,19 @@ describe("openWorkProduct external URL policy", () => {
     expect(electron.openExternal).toHaveBeenCalledWith("https://github.com/acme/repo");
   });
 
-  it("asks before opening untrusted http hosts", async () => {
+  it("asks before opening trusted hosts over http", async () => {
+    electron.openExternal.mockClear();
+    electron.showMessageBox.mockClear();
+    electron.showMessageBox.mockResolvedValueOnce({ response: 0 });
+
+    const result = await openUrl("http://github.com/acme/repo");
+
+    expect(result).toEqual({ ok: true, data: true });
+    expect(electron.showMessageBox).toHaveBeenCalledTimes(1);
+    expect(electron.openExternal).toHaveBeenCalledWith("http://github.com/acme/repo");
+  });
+
+  it("asks before opening untrusted hosts", async () => {
     electron.openExternal.mockClear();
     electron.showMessageBox.mockClear();
     electron.showMessageBox.mockResolvedValueOnce({ response: 0 });