when loading a page, browsers sometimes wait for 1-2s, but after loading successfully, re-reload the page, then < 1s can be loaded. What does the browser do at this time
when loading a page, browsers sometimes wait for 1-2s, but after loading successfully, re-reload the page, then < 1s can be loaded. What does the browser do at this time
the first time you load, all resources need to be loaded from the server. When
loads for the second time, resources such as css,js are fetched directly from the cache because the browser has a cache.
you can open the console and observe the contents of network
you need to learn about http caching
""network
:
status: 200
:
http headerexpires
http/1.1 last-modified
http/1.1 EtagEtag
status:304 Not-Modified
you can move to https://codeshelper.com/a/11... to see about the front-end browser cache
the browser has a caching mechanism
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