202044 2019-09-20 05:49:01 -0700 Block scoped variables should be visible across scripts 2021-06-24 18:20:45 -0700 1 1 1 Unclassified WebKit JavaScriptCore Safari 12 Mac macOS 10.14 RESOLVED DUPLICATE 193347 https://bugs.webkit.org/show_bug.cgi?id=147813 InRadar P2 Normal --- 1 paul.varna webkit-unassigned fpizlo mark.lam ross.kirsling saam webkit-bug-importer ysuzuki oldest_to_newest 1572727 0 paul.varna 2019-09-20 05:49:01 -0700 Const and let should be scoped to global context if used in top level script. (warning, global context is not the same as global object). Explanation: https://www.youtube.com/watch?v=5LEuJNLfLN0 Reproduction: <script> var one = true; const two = true; </script> <script type="module"> var three = true; const four = true; </script> <script type="module"> console.log({ one }); console.log({ two }); console.log({ three }); // should throw console.log({ four }); // should throw </script> 1572728 1 paul.varna 2019-09-20 05:50:49 -0700 On Safari 12.1, 13 and 13.1 throws error at console.log({ two }). It shouldn't. 1572776 2 webkit-bug-importer 2019-09-20 09:58:08 -0700 <rdar://problem/55563029> 1772514 3 ysuzuki 2021-06-24 18:20:45 -0700 Fixed in bug 193347 *** This bug has been marked as a duplicate of bug 193347 ***