{
  "api": {
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      "__compat": {
        "mdn_url": "https://developer.mozilla.org/docs/Web/API/SourceBufferList",
        "support": {
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              "version_added": "31"
            },
            {
              "version_added": "23",
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              "prefix": "-webkit-"
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            }
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          "firefox_android": {
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          },
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            "version_added": "11",
            "notes": "Only works on Windows 8+."
          },
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          },
          "opera_android": {
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          "mdn_url": "https://developer.mozilla.org/docs/Web/API/SourceBufferList/SourceBuffer",
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              "version_added": "45"
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            "chrome_android": {
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              }
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              "version_added": false
            },
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              "version_added": "11",
              "notes": "Only works on Windows 8+."
            },
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              "version_added": "32"
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              "version_added": "32"
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          },
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        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/SourceBufferList/length",
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          },
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            "standard_track": true,
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              "version_added": "53"
            },
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              "version_added": "53"
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                    "type": "preference",
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                ],
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            ],
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              "version_added": false
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              "version_added": "11",
              "notes": "Only works on Windows 8+."
            },
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              "version_added": "40"
            },
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              "version_added": "40"
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              "version_added": false
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          },
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}