nodejs
diff --git a/‎lib/path.js‎
Lines changed: 4 additions & 0 deletions b/‎lib/path.js‎
Lines changed: 4 additions & 0 deletions
diff --git a/‎test/parallel/test-path.js‎
Lines changed: 2 additions & 1 deletion b/‎test/parallel/test-path.js‎
Lines changed: 2 additions & 1 deletion
@@ -1282,6 +1282,10 @@ const posix = {
           // We get here if `from` is the exact base path for `to`.
           // For example: from='/foo/bar'; to='/foo/bar/baz'
           return to.slice(i + 2);
+        } else if (fromLen > length && from.charCodeAt(i + 1) === 47/*/*/) {
+          // We get here if `to` is the exact base path for `from`.
+          // For example: from='/foo/bar/baz'; to='/foo/bar'
+          lastCommonSep = i;
         }
         break;
       }
 
@@ -481,7 +481,8 @@ const relativeTests = [
      ['/var/lib', '/var/apache', '../apache'],
      ['/var/', '/var/lib', 'lib'],
      ['/', '/var/lib', 'var/lib'],
-     ['/foo/test', '/foo/test/bar/package.json', 'bar/package.json']
+     ['/foo/test', '/foo/test/bar/package.json', 'bar/package.json'],
+     ['/Users/a/web/b/test/mails', '/Users/a/web/b', '../..']
     ]
   ]
 ];
Original file line number	Diff line number	Diff line change
@@ -1282,6 +1282,10 @@ const posix = {
1282	1282	// We get here if `from` is the exact base path for `to`.
1283	1283	// For example: from='/foo/bar'; to='/foo/bar/baz'
1284	1284	return to.slice(i + 2);
	1285	+ } else if (fromLen > length && from.charCodeAt(i + 1) === 47///) {
	1286	+ // We get here if `to` is the exact base path for `from`.
	1287	+ // For example: from='/foo/bar/baz'; to='/foo/bar'
	1288	+ lastCommonSep = i;
1285	1289	}
1286	1290	break;
1287	1291	}
Original file line number	Diff line number	Diff line change
@@ -481,7 +481,8 @@ const relativeTests = [
481	481	['/var/lib', '/var/apache', '../apache'],
482	482	['/var/', '/var/lib', 'lib'],
483	483	['/', '/var/lib', 'var/lib'],
484		- ['/foo/test', '/foo/test/bar/package.json', 'bar/package.json']
	484	+ ['/foo/test', '/foo/test/bar/package.json', 'bar/package.json'],
	485	+ ['/Users/a/web/b/test/mails', '/Users/a/web/b', '../..']
485	486	]
486	487	]
487	488	];