{
  "http": {
    "headers": {
      "Content-Security-Policy": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy",
          "spec_url": "https://w3c.github.io/webappsec-csp/#csp-header",
          "tags": [
            "web-features:csp"
          ],
          "support": {
            "chrome": [
              {
                "version_added": "25"
              },
              {
                "alternative_name": "X-Webkit-CSP",
                "version_added": "14"
              }
            ],
            "chrome_android": "mirror",
            "edge": {
              "version_added": "14"
            },
            "firefox": [
              {
                "version_added": "23"
              },
              {
                "alternative_name": "X-Content-Security-Policy",
                "version_added": "4"
              }
            ],
            "firefox_android": {
              "version_added": "23"
            },
            "ie": {
              "alternative_name": "X-Content-Security-Policy",
              "version_added": "10",
              "notes": "Only supporting 'sandbox' directive."
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "15"
            },
            "opera_android": "mirror",
            "safari": [
              {
                "version_added": "7"
              },
              {
                "alternative_name": "X-Webkit-CSP",
                "version_added": "6"
              }
            ],
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "worker_support": {
          "__compat": {
            "description": "Worker support",
            "tags": [
              "web-features:csp"
            ],
            "support": {
              "chrome": {
                "version_added": "56"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "≤79"
              },
              "firefox": {
                "version_added": "50"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "10"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "base-uri": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/base-uri",
            "spec_url": "https://w3c.github.io/webappsec-csp/#directive-base-uri",
            "tags": [
              "web-features:csp"
            ],
            "support": {
              "chrome": {
                "version_added": "40"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "35"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "10"
              },
              "safari_ios": {
                "version_added": "9.3"
              },
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "block-all-mixed-content": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/block-all-mixed-content",
            "support": {
              "chrome": {
                "version_added": "44",
                "notes": "Will be removed, see [bug 40260100](https://crbug.com/40260100)."
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "≤79"
              },
              "firefox": {
                "version_added": "48",
                "version_removed": "122"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "10"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": true
            }
          }
        },
        "child-src": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/child-src",
            "spec_url": "https://w3c.github.io/webappsec-csp/#directive-child-src",
            "tags": [
              "web-features:csp"
            ],
            "support": {
              "chrome": {
                "version_added": "40"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "15"
              },
              "firefox": {
                "version_added": "45"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "10"
              },
              "safari_ios": {
                "version_added": "9.3"
              },
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "connect-src": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/connect-src",
            "spec_url": "https://w3c.github.io/webappsec-csp/#directive-connect-src",
            "tags": [
              "web-features:csp"
            ],
            "support": {
              "chrome": {
                "version_added": "25"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "14"
              },
              "firefox": [
                {
                  "version_added": "50"
                },
                {
                  "version_added": "23",
                  "partial_implementation": true,
                  "notes": "Before Firefox 50, ping attributes of &lt;a&gt; elements weren't covered by connect-src."
                }
              ],
              "firefox_android": {
                "version_added": "23"
              },
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "7"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "default-src": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/default-src",
            "spec_url": "https://w3c.github.io/webappsec-csp/#directive-default-src",
            "tags": [
              "web-features:csp"
            ],
            "support": {
              "chrome": {
                "version_added": "25"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "14"
              },
              "firefox": {
                "version_added": "23"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "7"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "fenced-frame-src": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/fenced-frame-src",
            "spec_url": "https://wicg.github.io/fenced-frame/#new-csp-directive",
            "tags": [
              "web-features:fencedframe"
            ],
            "support": {
              "chrome": {
                "version_added": "115"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": false
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": false
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": true,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "font-src": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/font-src",
            "spec_url": "https://w3c.github.io/webappsec-csp/#directive-font-src",
            "tags": [
              "web-features:csp"
            ],
            "support": {
              "chrome": {
                "version_added": "25"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "14"
              },
              "firefox": {
                "version_added": "23"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "7"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "form-action": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/form-action",
            "spec_url": "https://w3c.github.io/webappsec-csp/#directive-form-action",
            "tags": [
              "web-features:csp"
            ],
            "support": {
              "chrome": {
                "version_added": "40"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "15"
              },
              "firefox": {
                "version_added": "36"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "10"
              },
              "safari_ios": {
                "version_added": "9.3"
              },
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          },
          "blocks_redirects": {
            "__compat": {
              "description": "Redirects are blocked after a form submission",
              "support": {
                "chrome": {
                  "version_added": "≤63"
                },
                "chrome_android": "mirror",
                "edge": "mirror",
                "firefox": {
                  "version_added": false
                },
                "firefox_android": "mirror",
                "ie": {
                  "version_added": false
                },
                "oculus": "mirror",
                "opera": "mirror",
                "opera_android": "mirror",
                "safari": {
                  "version_added": "≤11.1"
                },
                "safari_ios": "mirror",
                "samsunginternet_android": "mirror",
                "webview_android": "mirror",
                "webview_ios": "mirror"
              },
              "status": {
                "experimental": false,
                "standard_track": false,
                "deprecated": false
              }
            }
          }
        },
        "frame-ancestors": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/frame-ancestors",
            "spec_url": "https://w3c.github.io/webappsec-csp/#directive-frame-ancestors",
            "tags": [
              "web-features:csp"
            ],
            "support": {
              "chrome": {
                "version_added": "40"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "15"
              },
              "firefox": [
                {
                  "version_added": "58"
                },
                {
                  "version_added": "33",
                  "partial_implementation": true,
                  "notes": "Before Firefox 58, `frame-ancestors` is ignored in `Content-Security-Policy-Report-Only`."
                }
              ],
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": {
                "version_added": "26"
              },
              "opera_android": "mirror",
              "safari": {
                "version_added": "10"
              },
              "safari_ios": {
                "version_added": "9.3"
              },
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "frame-src": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/frame-src",
            "spec_url": "https://w3c.github.io/webappsec-csp/#directive-frame-src",
            "tags": [
              "web-features:csp"
            ],
            "support": {
              "chrome": {
                "version_added": "25"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "14"
              },
              "firefox": {
                "version_added": "23"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "7"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "img-src": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/img-src",
            "spec_url": "https://w3c.github.io/webappsec-csp/#directive-img-src",
            "tags": [
              "web-features:csp"
            ],
            "support": {
              "chrome": {
                "version_added": "25"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "14"
              },
              "firefox": {
                "version_added": "23"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "7"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "manifest-src": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/manifest-src",
            "spec_url": "https://w3c.github.io/webappsec-csp/#directive-manifest-src",
            "tags": [
              "web-features:csp"
            ],
            "support": {
              "chrome": {
                "version_added": "40"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "41"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "11"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "media-src": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/media-src",
            "spec_url": "https://w3c.github.io/webappsec-csp/#directive-media-src",
            "tags": [
              "web-features:csp"
            ],
            "support": {
              "chrome": {
                "version_added": "25"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "14"
              },
              "firefox": {
                "version_added": "23"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "7"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "meta-element-support": {
          "__compat": {
            "description": "`&lt;meta&gt;` element support",
            "tags": [
              "web-features:csp"
            ],
            "support": {
              "chrome": {
                "version_added": "25"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "≤18"
              },
              "firefox": {
                "version_added": "45"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "7"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "object-src": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/object-src",
            "spec_url": "https://w3c.github.io/webappsec-csp/#directive-object-src",
            "tags": [
              "web-features:csp"
            ],
            "support": {
              "chrome": {
                "version_added": "25"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "14"
              },
              "firefox": {
                "version_added": "23"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "7"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "prefetch-src": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/prefetch-src",
            "support": {
              "chrome": {
                "version_added": false,
                "impl_url": "https://crbug.com/40090173"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": false,
                "impl_url": "https://bugzil.la/1457204"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "16.3",
                "impl_url": "https://webkit.org/b/185070"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": false,
              "deprecated": true
            }
          }
        },
        "report-sample": {
          "__compat": {
            "description": "`report-sample` source value",
            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy#fetch_directive_syntax",
            "tags": [
              "web-features:csp"
            ],
            "support": {
              "chrome": {
                "version_added": "59"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "≤79"
              },
              "firefox": {
                "version_added": "63"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "15.4"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "report-to": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/report-to",
            "spec_url": "https://w3c.github.io/webappsec-csp/#directive-report-to",
            "tags": [
              "web-features:csp"
            ],
            "support": {
              "chrome": {
                "version_added": "70"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "130",
                "flags": [
                  {
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            },
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            "status": {
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              "standard_track": true,
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              "spec_url": "https://w3c.github.io/webappsec-csp/#external-hash",
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              "support": {
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                "chrome_android": "mirror",
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                "firefox": {
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                "firefox_android": "mirror",
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                "oculus": "mirror",
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                "safari_ios": "mirror",
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              "status": {
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                "standard_track": true,
                "deprecated": false
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              "spec_url": "https://wicg.github.io/nav-speculation/speculation-rules.html#content-security-policy",
              "tags": [
                "web-features:speculation-rules"
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              "support": {
                "chrome": {
                  "version_added": "110"
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                "chrome_android": "mirror",
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                "firefox": {
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                "firefox_android": "mirror",
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                "oculus": "mirror",
                "opera": "mirror",
                "opera_android": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror",
                "samsunginternet_android": "mirror",
                "webview_android": "mirror",
                "webview_ios": "mirror"
              },
              "status": {
                "experimental": true,
                "standard_track": true,
                "deprecated": false
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            }
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              "description": "Source expression allowing WebAssembly execution",
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                "web-features:csp"
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              "support": {
                "chrome": {
                  "version_added": "97"
                },
                "chrome_android": "mirror",
                "edge": "mirror",
                "firefox": {
                  "version_added": "102"
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                "firefox_android": "mirror",
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                "oculus": "mirror",
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              "status": {
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            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-attr",
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            "status": {
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            "status": {
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          }
        },
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            "status": {
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            "status": {
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              "standard_track": true,
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              "safari_ios": "mirror",
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            "status": {
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              "deprecated": false
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        },
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            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy#fetch_directive_syntax",
            "tags": [
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            "support": {
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                "version_added": "69"
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              "chrome_android": "mirror",
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              "firefox": {
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            "status": {
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            "spec_url": "https://w3c.github.io/webappsec-upgrade-insecure-requests/#delivery",
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            "support": {
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            "status": {
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              "standard_track": true,
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              "firefox": {
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}