{
 "compat_features": [
  "http.headers.Clear-Site-Data",
  "http.headers.Clear-Site-Data.cache",
  "http.headers.Clear-Site-Data.clientHints",
  "http.headers.Clear-Site-Data.cookies",
  "http.headers.Clear-Site-Data.executionContexts",
  "http.headers.Clear-Site-Data.secure_context_required",
  "http.headers.Clear-Site-Data.storage",
  "http.headers.Clear-Site-Data.wildcard"
 ],
 "description": "The Clear-Site-Data header deletes browsing data (such as cookies, storage, or cache) associated with the requesting website.",
 "description_html": "The <code>Clear-Site-Data</code> header deletes browsing data (such as cookies, storage, or cache) associated with the requesting website.",
 "kind": "feature",
 "name": "Clearing site data",
 "spec": [
  "https://w3c.github.io/webappsec-clear-site-data/"
 ],
 "status": {
  "baseline": false,
  "by_compat_key": {
   "http.headers.Clear-Site-Data": {
    "baseline": "high",
    "baseline_high_date": "2026-03-18",
    "baseline_low_date": "2023-09-18",
    "support": {
     "chrome": "61",
     "chrome_android": "61",
     "edge": "79",
     "firefox": "63",
     "firefox_android": "63",
     "safari": "17",
     "safari_ios": "17"
    }
   },
   "http.headers.Clear-Site-Data.cache": {
    "baseline": false,
    "support": {
     "firefox": "138",
     "firefox_android": "138",
     "safari": "17",
     "safari_ios": "17"
    }
   },
   "http.headers.Clear-Site-Data.clientHints": {
    "baseline": false,
    "support": {
     "chrome": "117",
     "chrome_android": "117",
     "edge": "117"
    }
   },
   "http.headers.Clear-Site-Data.cookies": {
    "baseline": "high",
    "baseline_high_date": "2026-03-18",
    "baseline_low_date": "2023-09-18",
    "support": {
     "chrome": "61",
     "chrome_android": "61",
     "edge": "79",
     "firefox": "63",
     "firefox_android": "63",
     "safari": "17",
     "safari_ios": "17"
    }
   },
   "http.headers.Clear-Site-Data.executionContexts": {
    "baseline": false,
    "support": {}
   },
   "http.headers.Clear-Site-Data.secure_context_required": {
    "baseline": "high",
    "baseline_high_date": "2026-03-18",
    "baseline_low_date": "2023-09-18",
    "support": {
     "chrome": "61",
     "chrome_android": "61",
     "edge": "79",
     "firefox": "63",
     "firefox_android": "63",
     "safari": "17",
     "safari_ios": "17"
    }
   },
   "http.headers.Clear-Site-Data.storage": {
    "baseline": "high",
    "baseline_high_date": "2026-03-18",
    "baseline_low_date": "2023-09-18",
    "support": {
     "chrome": "61",
     "chrome_android": "61",
     "edge": "79",
     "firefox": "63",
     "firefox_android": "63",
     "safari": "17",
     "safari_ios": "17"
    }
   },
   "http.headers.Clear-Site-Data.wildcard": {
    "baseline": false,
    "support": {
     "firefox": "63",
     "firefox_android": "63",
     "safari": "17",
     "safari_ios": "17"
    }
   }
  },
  "support": {
   "firefox": "138",
   "firefox_android": "138",
   "safari": "17",
   "safari_ios": "17"
  }
 },
 "id": "clear-site-data",
 "groups": [],
 "specs": [
  {
   "url": "https://w3c.github.io/webappsec-clear-site-data/",
   "seriesComposition": "full",
   "shortname": "clear-site-data",
   "series": {
    "shortname": "clear-site-data",
    "currentSpecification": "clear-site-data",
    "title": "Clear Site Data",
    "shortTitle": "Clear Site Data",
    "releaseUrl": "https://www.w3.org/TR/clear-site-data/",
    "nightlyUrl": "https://w3c.github.io/webappsec-clear-site-data/"
   },
   "organization": "W3C",
   "groups": [
    {
     "name": "Web Application Security Working Group",
     "url": "https://www.w3.org/groups/wg/webappsec/"
    }
   ],
   "release": {
    "url": "https://www.w3.org/TR/clear-site-data/",
    "status": "Working Draft",
    "filename": "Overview.html"
   },
   "nightly": {
    "url": "https://w3c.github.io/webappsec-clear-site-data/",
    "status": "Editor's Draft",
    "alternateUrls": [],
    "repository": "https://github.com/w3c/webappsec-clear-site-data",
    "sourcePath": "index.src.html",
    "filename": "index.html"
   },
   "title": "Clear Site Data",
   "source": "w3c",
   "shortTitle": "Clear Site Data",
   "categories": [
    "browser"
   ],
   "standing": "good",
   "tests": {
    "repository": "https://github.com/web-platform-tests/wpt",
    "testPaths": [
     "clear-site-data"
    ]
   },
   "fragment": null
  }
 ],
 "mdnUrls": [
  {
   "slug": "Web/HTTP/Reference/Headers/Clear-Site-Data",
   "title": "Clear-Site-Data header",
   "anchor": null,
   "url": "https://developer.mozilla.org/docs/Web/HTTP/Reference/Headers/Clear-Site-Data"
  }
 ],
 "standardPositions": [
  {
   "vendor": "mozilla",
   "url": "https://github.com/mozilla/standards-positions/issues/90",
   "position": "positive",
   "concerns": []
  },
  {
   "vendor": "apple",
   "url": "https://github.com/WebKit/standards-positions/issues/230",
   "position": "blocked",
   "concerns": []
  }
 ],
 "hasNegativeStandardPosition": false,
 "stateOfSurveys": [],
 "chromeUseCounters": {
  "percentageOfPageLoad": 0.00280162,
  "url": "https://chromestatus.com/metrics/webfeature/timeline/popularity/339"
 },
 "interop": [],
 "wpt": {
  "url": "https://wpt.fyi/results?q=feature:clear-site-data"
 },
 "developerSignals": {
  "url": "https://github.com/web-platform-dx/developer-signals/issues/552",
  "votes": 1
 },
 "bugs": {
  "chrome": [
   "https://issues.chromium.org/issues/398149359",
   "https://bugs.chromium.org/p/chromium/issues/detail?id=1464260",
   "https://crbug.com/607897",
   "https://crbug.com/40599527"
  ],
  "chrome_android": [
   "https://crbug.com/40599527"
  ],
  "edge": [
   "https://crbug.com/40599527"
  ],
  "firefox": [
   "https://bugzil.la/1838506",
   "https://bugzil.la/1635189"
  ],
  "firefox_android": [
   "https://bugzil.la/1838506",
   "https://bugzil.la/1635189"
  ]
 },
 "useCases": null,
 "baselineLowDateAsObject": null,
 "baselineHighDateAsObject": null,
 "blockedOn": "Chromium",
 "blockedSince": "April 2025",
 "monthsBlocked": 18
}