Ignore duplicate slashes at the start of relative path specifiers (#9048)

Author: devongovett

packages/utils/node-resolver-rs/src/lib.rs

@@ -1226,6 +1226,14 @@ mod tests {
         .0,
       Resolution::Path(root().join("bar.js"))
     );
+    assert_eq!(
+      test_resolver()
+        .resolve(".///bar.js", &root().join("foo.js"), SpecifierType::Esm)
+        .result
+        .unwrap()
+        .0,
+      Resolution::Path(root().join("bar.js"))
+    );
     assert_eq!(
       test_resolver()
         .resolve("./bar", &root().join("foo.js"), SpecifierType::Esm)

packages/utils/node-resolver-rs/src/specifier.rs

@@ -59,7 +59,11 @@ impl<'a> Specifier<'a> {
 
     Ok(match specifier.as_bytes()[0] {
       b'.' => {
-        let specifier = specifier.strip_prefix("./").unwrap_or(specifier);
+        let specifier = if let Some(specifier) = specifier.strip_prefix("./") {
+          specifier.trim_start_matches('/')
+        } else {
+          specifier
+        };
         let (path, query) = decode_path(specifier, specifier_type);
         (Specifier::Relative(path), query)
       }