{"checkedAt":"2026-11-01","kind":"selected-fields-transcribed-from-mdn-bcd","note":"这是核对时选取的字段，不是完整 BCD 仓库快照；preview 不表示正式版支持，mirror 按对应引擎解释。","features":[{"name":"dialog.showModal","chrome":"37","firefox":"98","safari":"15.4","source":"https://raw.githubusercontent.com/mdn/browser-compat-data/main/api/HTMLDialogElement.json"},{"name":"popover","chrome":"114","firefox":"125","safari":"17","source":"https://raw.githubusercontent.com/mdn/browser-compat-data/main/html/global_attributes.json"},{"name":"command / commandfor","chrome":"135","firefox":"144","safari":"26.2","source":"https://raw.githubusercontent.com/mdn/browser-compat-data/main/html/elements/button.json"},{"name":"closedby","chrome":"134","firefox":"141","safari":"preview","source":"https://raw.githubusercontent.com/mdn/browser-compat-data/main/html/elements/dialog.json"},{"name":"@starting-style","chrome":"117","firefox":"129","safari":"17.5","source":"https://raw.githubusercontent.com/mdn/browser-compat-data/main/css/at-rules/starting-style.json"},{"name":"transition-behavior","chrome":"117","firefox":"129 (partial: no display transitions)","safari":"17.4","source":"https://raw.githubusercontent.com/mdn/browser-compat-data/main/css/properties/transition-behavior.json"},{"name":"display transition","chrome":"117","firefox":false,"safari":"18","source":"https://raw.githubusercontent.com/mdn/browser-compat-data/main/css/properties/transition-behavior.json"},{"name":"overlay","chrome":"117","firefox":false,"safari":false,"source":"https://raw.githubusercontent.com/mdn/browser-compat-data/main/css/properties/overlay.json"}]}