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CDN加速后源站本来有的etag字段消失了

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游客vq7pxdx6hymxo 2018-03-03 12:50:44 1256 分享 版权
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    详细解答可以参考官方帮助文档

    建议排查是否开启了cdn的 gzip功能

    因为Nginx的默认行为就是这样,同时开启gzip和etag,就直接不用etag了。以下是Nginx文档原文:

    The issue was discussed over several forum threads and trackers. It appeared that Nginx deliberately strips ETags once gzip is applied,The motivation behind was that ETag should serve as a byte-accurate comparison, and since the result of gzip is not guaranteed to be identical under different configurations, ETag is no longer a strong validator and Nginx decided that it was simpler to remove it as opposed to converting it to a weak one.

    2018-03-08 12:04:40
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