fix(file_server): don't crash on "%" pathname (#3953)

1 files changed, 7 insertions, 4 deletions

diff --git a/std/http/file_server_test.ts b/std/http/file_server_test.ts
index ba625b7c8..0329168e7 100644
--- a/std/http/file_server_test.ts
+++ b/std/http/file_server_test.ts
@@ -83,12 +83,15 @@ test(async function serveFallback(): Promise<void> {
   }
 });
 
-test(async function serveFallback(): Promise<void> {
+test(async function serveWithUnorthodoxFilename(): Promise<void> {
   await startFileServer();
   try {
-    const res = await fetch(
-      "http://localhost:4500/http/testdata/test%20file.txt"
-    );
+    let res = await fetch("http://localhost:4500/http/testdata/%");
+    assert(res.headers.has("access-control-allow-origin"));
+    assert(res.headers.has("access-control-allow-headers"));
+    assertEquals(res.status, 200);
+
+    res = await fetch("http://localhost:4500/http/testdata/test%20file.txt");
     assert(res.headers.has("access-control-allow-origin"));
     assert(res.headers.has("access-control-allow-headers"));
     assertEquals(res.status, 200);