Is it possible to get a http header set by the website inside of an alert box?

Asked Sep 10 '18 at 21:35

Active Sep 10 '18 at 21:35

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I'm new to javascript and i'd like to know if it's possible to make appear the value of a custom header inside of an alert box. For example if i set a custom http header named 'test' with value '123' is it possible to make an alert box with '123' as content?

I'm not looking for a simple alert(123) code but something like

alert(custom.header.value)

but i don't know if it's possible since i'm new to javascript. Could you please also let me know a sample valid code? Thanks.

asked Sep 10 '18 at 21:35

Jang Dag

The header i need to insert inside of an alert box is sent in client request and it's not in the response – Jang Dag Sep 10 '18 at 21:39
Do you have access to the custom header since you are making the request from the client? – Cody S Sep 10 '18 at 21:44
@CodyS, Yes i have access to the custom header. – Jang Dag Sep 10 '18 at 21:53
Can you put the custom header into a variable (var header = "123") and then use the alert from there? Or are you trying to get the header from some global variable set by the browser? – Cody S Sep 10 '18 at 22:03
@CodyS This. Or are you trying to get the header from some global variable set by the browser? – Jang Dag Sep 10 '18 at 22:17
I'm trying to get the header from the browser – Jang Dag Sep 10 '18 at 22:18
This question may help you: https://stackoverflow.com/questions/220231/accessing-the-web-pages-http-headers-in-javascript – Cody S Sep 10 '18 at 22:36
@CodyS, They are all talking about response headers while i'd like to get request headers. – Jang Dag Sep 11 '18 at 11:13

Is it possible to get a http header set by the website inside of an alert box?

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