{
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              "version_added": true
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              "version_added": true
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              "version_added": true
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            "standard_track": true,
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                "version_added": true
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              "chrome": {
                "version_added": true
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              "chrome_android": {
                "version_added": true
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                "version_added": true
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                "version_added": true
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                "version_added": "1"
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                "version_added": "4"
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                "version_added": true
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                "version_added": true
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                "version_added": true
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                "version_added": true
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                "version_added": true
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                "version_added": true
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              "experimental": false,
              "standard_track": true,
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              "webview_android": {
                "version_added": true
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              "chrome": {
                "version_added": true
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              "chrome_android": {
                "version_added": true
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                "version_added": true
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                "version_added": true
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                "version_added": "1"
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                "version_added": "4"
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                "version_added": true
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                "version_added": true
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                "version_added": true
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                "version_added": true
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                "version_added": true
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                "version_added": true
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              "experimental": false,
              "standard_track": true,
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              "webview_android": {
                "version_added": true
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              "chrome": {
                "version_added": true
              },
              "chrome_android": {
                "version_added": true
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                "version_added": true
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                "version_added": true
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                "version_added": "1"
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                "version_added": "4"
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                "version_added": true
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                "version_added": true
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                "version_added": true
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                "version_added": true
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                "version_added": true
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                "version_added": true
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              "experimental": false,
              "standard_track": true,
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              "support": {
                "webview_android": {
                  "version_added": true
                },
                "chrome": {
                  "version_added": true
                },
                "chrome_android": {
                  "version_added": true
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                  "version_added": true
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                  "version_added": true
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                  "version_added": "1"
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                  "version_added": true
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                  "version_added": true
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                  "version_added": true
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                  "version_added": true
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                  "version_added": true
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                "chrome": {
                  "version_added": true
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                "chrome_android": {
                  "version_added": true
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                  "version_added": true
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                  "version_added": true
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                  "version_added": "1"
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                  "version_added": true
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                  "version_added": true
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                  "version_added": true
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                  "version_added": true
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                  "version_added": true
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                  "version_added": true
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                "experimental": false,
                "standard_track": true,
                "deprecated": false
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              "support": {
                "webview_android": {
                  "version_added": true
                },
                "chrome": {
                  "version_added": true
                },
                "chrome_android": {
                  "version_added": true
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                  "version_added": true
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                  "version_added": true
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                  "version_added": true
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                  "version_added": true
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                  "version_added": true
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                  "version_added": true
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                "experimental": false,
                "standard_track": true,
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                  "version_added": true
                },
                "chrome": {
                  "version_added": true
                },
                "chrome_android": {
                  "version_added": true
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                  "version_added": true
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                  "version_added": true
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                  "version_added": "1"
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                  "version_added": "4"
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                  "version_added": true
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                  "version_added": true
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                "opera_android": {
                  "version_added": true
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                  "version_added": true
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                "safari_ios": {
                  "version_added": true
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                  "version_added": true
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                "experimental": false,
                "standard_track": true,
                "deprecated": false
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                  "version_added": true
                },
                "chrome": {
                  "version_added": true
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                "chrome_android": {
                  "version_added": true
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                  "version_added": true
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                  "version_added": true
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                  "version_added": "1"
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                "firefox_android": {
                  "version_added": "4"
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                  "version_added": true
                },
                "opera": {
                  "version_added": true
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                "opera_android": {
                  "version_added": true
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                  "version_added": true
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                "safari_ios": {
                  "version_added": true
                },
                "samsunginternet_android": {
                  "version_added": true
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              },
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                "experimental": false,
                "standard_track": true,
                "deprecated": true
              }
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              "webview_android": {
                "version_added": true
              },
              "chrome": {
                "version_added": true
              },
              "chrome_android": {
                "version_added": true
              },
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                "version_added": true
              },
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                "version_added": true
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                "version_added": "1"
              },
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                "version_added": "4"
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                "version_added": true
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              "opera": {
                "version_added": true
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              "opera_android": {
                "version_added": true
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                "version_added": true
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              "safari_ios": {
                "version_added": true
              },
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                "version_added": true
              }
            },
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              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
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                "webview_android": {
                  "version_added": true
                },
                "chrome": {
                  "version_added": true
                },
                "chrome_android": {
                  "version_added": true
                },
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                  "version_added": true
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                  "version_added": true
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                  "version_added": "1"
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                  "version_added": true
                },
                "opera": {
                  "version_added": true
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                  "version_added": true
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                  "version_added": true
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                  "version_added": true
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                "experimental": false,
                "standard_track": true,
                "deprecated": true
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                  "version_added": null
                },
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                },
                "chrome_android": {
                  "version_added": null
                },
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                  "version_added": false
                },
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                  "version_added": false
                },
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                },
                "firefox_android": {
                  "version_added": "36",
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                },
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                  "version_added": null
                },
                "opera": {
                  "version_added": null
                },
                "opera_android": {
                  "version_added": null
                },
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                  "version_added": null
                },
                "safari_ios": {
                  "version_added": null
                },
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                  "version_added": null
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                "standard_track": true,
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    }
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}