点下面这里,就可以看到这些字段的说明。  见 [网络功能参考](https://link.segmentfault.com/?enc=MQSCHOwzhyenHm1%2BOtbItQ%3D%3D.NX%2FyWbf3jLut6aTego9BGhR6Ok8D4lY6aynjUAhI9NyXJTxdWYGfcfHkLmE7TaCv6ryLoPUhanjZW%2BXiWHh3ehlC9PFvdNU5NzZPpVKi1odN4JSOVIU7Agm%2Bzf1pjyCQFBUOEEhy75N6%2Bzi0szsuhMeKjaCFz6py8lx89tLIoWV%2BgfqepA4AoLg62rpnwb0XAOMsLszFtmbgjZNZUmKBPOBgNvl1P3y5weOaGcLO7J9CeWj8wZBhcZX4vIXcefC8fA8UyvrDPd3kuxXHXSM2TvgPw%2B8KkW0RNU5auBcf96lCJz6ZTAiaXxqAhT%2FOZhz79chTi85ZY2YUZuAZDPcF0V%2BYjdr60FviMcT0oRFQ0y1oyp6hHWfbtWRHil3sIQZmF29EVlWJo0GyrlfFFRvUFoSyLNK2KV1ASRsqAn3vsR%2FvfenagJ0Z48mZuuDRU1wwSv4RUlsFqqLO52RMkY7YYw%3D%3D) 中的描述。  也可以参考英文原版: > **Queueing.** The browser queues requests before connection start and when: > There are higher priority requests. > There are already six TCP connections open for this origin, which is the > limit. Applies to HTTP/1.0 and HTTP/1.1 only. > The browser is briefly allocating space in the disk cache. > > **Stalled.** The request could be stalled after connection start for any of > the reasons described in Queueing. 可能的原因就这 3 个。