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Maarten Lakerveld
46de23727f
* Remove web components polyfills and ES5 custom elements adapter All supported browsers (legacy floor: Chrome 59, Safari/iOS 12, Firefox 94) have native shadow DOM and custom elements, so the webcomponents bundle, ShadyCSS branch, and lit polyfill-support are unreachable. The legacy build now emits ES2017 classes, so custom-elements-es5-adapter and the window.loadES5Adapter hook (no known third-party consumers) are removed. Also stops shipping the never-loaded dialog-polyfill css and drops both now-unused dependencies. * Remove keyed-es5 Terser workaround The custom keyed directive existed because Terser with ecma: 5 miscompiled the destructured update() parameters (#28732). The legacy build now minifies with ecma: 2017, so the stock lit-html keyed directive works in both builds. * Remove old-browser JS shims and stale ES5 build references Drops the IE-only navigator.msMaxTouchPoints check, replaces the toggleAttribute helper with the native method (polyfilled automatically for Chrome < 69 in the legacy build), and removes babel excludes for the uninstalled proxy-polyfill and unfetch packages. Updates comments that still described the legacy build as ES5. * Remove vendor prefixes for no-longer-supported browsers Deletes -ms- prefixes (IE/EdgeHTML only) and -webkit-/-moz- prefixed declarations that every supported browser understands unprefixed, or that Lightning CSS re-adds automatically from the unprefixed property in production builds. Blocks that only had prefixed user-select now use the standard property (previously Firefox got no user-select there at all). Converts the four -webkit-linear-gradient() declarations - the sole gradient syntax on those sliders - to standard linear-gradient(). * Remove dead html_url custom panel support html_url pointed to an HTML Import, a Polymer-era feature removed from Chrome in 2019 and never shipped elsewhere. The loader has not handled the html type for years (it fell through to a rejection), and core's panel_custom integration no longer accepts the option, so the branch was unreachable. Also drops the ha-panel-${name} legacy tag naming that was keyed on html_url. * Repair list-plugins-and-polyfills script for Babel 8 The audit script died at startup since the Babel 8 update: preset-env no longer exposes lib/debug.js (logPlugin is now inlined locally, built on the public getInclusionReasons helper) and babel-plugin-polyfill-corejs3 v1 no longer ships lib/shipped-proposals.js (list inlined). Instead of invoking the preset with a hand-mocked plugin API - the part that kept drifting - the plugin listing now runs a real transform of an empty file with preset-env in debug mode, declaring the same caller capabilities as babel-loader. The polyfill listing now passes the configured core-js version to core-js-compat, mirroring the provider's own filtering so the report cannot list modules the installed core-js lacks. Output is byte-identical to the direct-invocation approach. Also documents the script in the build-scripts README. * Correct macOS floor for Safari 26 in companion app UA regex Safari 26 ships for macOS 14 Sonoma and 15 Sequoia, not only macOS 26, so the SAFARI_TO_MACOS entry breaking the minimum-supported-macOS pattern would have sent updated macOS 14/15 companion apps to the legacy build once the modern floor reaches Safari 26. * Remove orphaned values left behind by vendor prefix removal * Require macOS 14.6 for Safari 26 in companion app UA regex