WebView2 runs document-start scripts before the document has an element, so
injectCSS threw ("reading 'appendChild'") for every CSS feature that was on at
start, e.g. hiding promoted posts, until the next flags delivery restarted it.
Such styles now wait (one MutationObserver for all of them), are attached as
soon as the document has a root, and get their CSP check then; a style cleared
while waiting is never attached.
Site-agnostic parts of the X app, behind a small site adapter:
- crates/waybetter-host: webview-label security policy and tab rect
clamp, account profiles with native-owned accounts (AccountRules),
plugin store with bundled-plugin upgrades (PluginHost), signed
data-only hotfix channel, update scheduling and crash handshake, tab
payloads/link routing/tab-chrome validation, and (feature "tauri")
webview helpers and the Windows system menu.
- packages/runtime: DOM hub, request hub, plugin API core, OKLab theme
color model, split-view rail hiding, link routing and account
reporting, each configured by a SiteAdapter.
- packages/shell: address bar, pane, link-drop, profile, palette and
update-chip models, and window controls with the Tauri API injected.
Tests moved/adapted from the app: 45 Rust (headless), 40 TypeScript.
