• Support for top-level await variant B through a promise return from System.register execute
• Support for real ES module returns in instantiate through Symbol.toStringTag detection (allowing bridging between native loader)

Fixes trailing backtracking segment handling regression in URL resolution (#536)

Handle falsy default interop module values (31de1f5)

Fix state persistence bug with registry removal - while errors are cached in the registry, a delete operation acts to clear these (2ac37ef)

Fixes some failing circular reference cases in the linking algorithm, also providing a perf improvement to loading (ebf9dda)

Simplifies URL resolution protocol handling (5c23a11)

Fix let statement for compatibility (cec262f)

Fixes a bug with error caching (e34a1d0)

Prepares the way for import.meta.url as the primary contextual mechanism, to allow deprecation of __moduleName.

Features

• New default interop to allow import {default} from 'cjs' to work out even when the CJS module contains exports.__esModule = true; exports.default = 'x', which previously would have returned exports instead of 'x' (ad8ca7d)
• Upgrades to the new WhatWG spec error algorithm of caching fetch and evaluation errors. Support for Loader.prototype.delete is provided to ensure this can clear that state. (#533)

Bug Fixes

• Fixes the URL resolution algorithm to ensure that ./x/some:path is not detected as an absolute URL (d3a2e33)