Getting "HTTP_USER_AGENT:UserAgent" from server variables

Question

Sometimes my application is getting UserAgent in the server variable HTTP_USER_AGENT. What does it mean and why it could not get my users browser information ?

Quentin · Accepted Answer · 2015-07-20 12:48:36Z

0

It means that the client set:

User-Agent: UserAgent

in the HTTP headers. That is the information that the client sent.

answered Jul 20, 2015 at 12:48

Quentin

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2 Comments

Mohamed Farrag Over a year ago

does that mean the client doesn't want my application to know such information ? I'm asking because I'm suspecting an attack.

Quentin Over a year ago

We can only speculate on what the motivation of the person who set it was. There are any number of possible reasons. Concerns about privacy. Laziness. Concerns about being caught. Something else.

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