A developer reports errors when trying to access a web application. The developer uses Postman to troubleshoot and receives the following error: Which of the following is the cause of the issue?

The correct answer is B. Lack of user authentication. The 403 Forbidden HTML response indicates the API is rejecting the call due to missing or invalid credentials (no valid access key/signature), not because of a missing resource (404), a network- level block (you'd see a timeout or TCP reject), or an HTTP redirect. Proper authenti

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Question

A developer reports errors when trying to access a web application. The developer uses Postman to troubleshoot and receives the following error:

Which of the following is the cause of the issue?

Exhibit

Options

ARequested element not found
BLack of user authentication
CToo restrictive NGFW rule
DIncorrect HTTP redirection

How the community answered

(31 responses)

A
3% (1)
B
87% (27)
C
6% (2)
D
3% (1)

Explanation

The 403 Forbidden HTML response indicates the API is rejecting the call due to missing or invalid credentials (no valid access key/signature), not because of a missing resource (404), a network- level block (you'd see a timeout or TCP reject), or an HTTP redirect. Proper authentication headers with a valid signature are required to avoid the 403 error.

Topics

#Web application troubleshooting#HTTP authentication#HTTP status codes#Postman

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