video.js

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{
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  "presets": [
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    [
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      "@babel/preset-env",
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      {
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        "targets": [
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          "last 3 major versions",
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          "Firefox ESR",
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          "Chrome >= 53",
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          "not dead",
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          "not ie 11",
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          "not baidu 7",
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          "not and_qq 11",
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          "not and_uc 12",
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          "not op_mini all"
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        ],
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        "bugfixes": true,
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        "loose": true
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      }
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    ]
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  ]
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}
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