When can a stored response be reused?
Your objectiveDistinguish cache storage from validation before reuse.
Understand the idea.
The decision to keep a response and the decision to reuse it are separate. no-store tells caches not to retain the response. no-cache allows storage but requires validation before reuse. A private response must not be stored by a shared cache, although a private browser cache can still be permitted to store it.
A worked example.
A versioned stylesheet and an editor’s authenticated page should not automatically share the same policy. A stylesheet whose URL changes with its bytes can tolerate different reuse rules from an editing response that contains private state.
Try the reasoning.
Read the Cache-Control header on this local page. Use the Blog explainer to compare that value with no-cache. Do not change browser or network security settings.
DNS supplies records associated with the name. A successful answer does not establish application health.
Conceptual illustration. Selecting a step does not send a network request.Carry it into practice.
Create a two-column inventory: resources that may be stored, and the conditions under which each may be reused.
Read the reference: MDN: Cache-Control ↗