Answer
Use:
- ETag
- Last-Modified
- If-None-Match or If-Modified-Since
Returns 304 Not Modified when content is unchanged.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
Want to bookmark, take notes, or join discussions?
Sign in to access all features and personalize your learning experience.
Source: SugharaIQ