Patches

• Fix IE global detection to ignore IFrames (#2035, @kduret)
• Remove stray console.log (#2046, @joeldenning)

• Fix relative resolution of LHS URLs in import maps (#2039)
• Fix named register extra to extend rather than reinstantiate the SystemJS instance (#2042)
• Update extras to extend the global System instance explicitly (#2043)

Patches

• Bug fix for named AMD modules (#2029)
• Bug fix for IE11 regression (#2033)

Patches

• Fixes a bug where imports before the import map load might not apply the import map (#2024, @joeldenning)
• Fixes the module-types extra output which was incorrectly referencing an import (#2027, @joeldenning)

Breaking Changes

• Import map scopes now require a trailing / (#2009)
• JSON and Wasm modules are no longer supported by default in s.js and system.js. Instead, use the new module-types extra
• Deps argument added to onload hook (#1998)
• System.resolve is now synchronous by default in both s.js and system.js (#1996 and #1939, @joeldenning)

Features

• CSS modules can now be loaded by s.js and system.js. Docs (#1997)
• Cascading/Composing import maps are now supported. Docs (#2009)
• New module types extra for CSS, JSON and Wasm (#2006)
• The first named System.regiser in a bundle will now define the bundle module itself. This avoids need for double System.import() (#1984, @joeldenning)

Patches

• Named exports extra fix to not alter the default export (#1983, @joeldenning)

Major Changes

• Import map scopes now resolve relative to the base, not the scope (#1975)

Features

• Added a new "Use Default" extra. (#1969)

Maintenance

• Fix typo in comment. (#1970 @kouts)

Upgrades to ES Module Loader 2.3.0:

• 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 a Rollup build bug resulting in rewriting of indirect eval.

Production Loader

• Fixes global detection when loading in parallel (#1810)

Dev Loader

• Fixes indirect eval build bug (#1809)
• Disables invalid depCache preloading when running in Node (#1806)

Updates SystemJS production loader to support System.config({ wasm: true }) with WebAssembly.compileStreaming.

Updates SystemJS production loader to support System.config({ wasm: true }) with WebAssembly.compileStreaming.

This release represents a new build of the 6KB SystemJS production loader with the following changes:

• Support for loading modules as AMD falling back to global detection (#1778)
• AMD modules are treated as having the shape { default: module } through System.import instead of returning the default directly (this will ensure dynamic import workflows work out correctly) (#1786)

Now that Rollup supports the system module format and code splitting, this will allow easy production workflows against chunking and CDN externals.