Normalize URL paths: convert /.//p, /..//p, and //p to p

Author: theskim

url/src/lib.rs

@@ -1723,6 +1723,19 @@ impl Url {
                 );
             }
         });
+
+        // To handle cases like <non-spec:/> set pathname to </.//p>
+        // For instance, //p should be converted to /.//p here
+        if let Some(pos) = self.serialization.rfind("//") {
+            let rest = &self.serialization[(pos + 2)..];
+
+            const PATH_INCREMENT: u32 = 2; // length of "/."
+            if rest.len() == 1 {
+                self.serialization.replace_range(pos.., &format!("/.//{}", rest));
+                self.path_start += PATH_INCREMENT;
+            }
+        }
+
         self.restore_after_path(old_after_path_pos, &after_path);
     }
 

url/tests/expected_failures.txt

@@ -44,7 +44,4 @@
 <file://monkey/> set pathname to <\\\\>
 <file:///unicorn> set pathname to <//\\/>
 <file:///unicorn> set pathname to <//monkey/..//>
-<non-spec:/> set pathname to </.//p>
-<non-spec:/> set pathname to </..//p>
-<non-spec:/> set pathname to <//p>
 <non-spec:/.//> set pathname to <p>