Page Information

• Feature: HTTP Headers Detection
• Purpose: Testing request_headers parameter

This page will analyze the HTTP headers sent with the request and display them.

Your HTTP Headers

Testing Instructions

When testing the screenshot service with this page:

1. First take a screenshot with the default headers to establish a baseline.
2. Then set the request_headers parameter in your screenshot request to include custom headers.
3. Verify that the screenshot shows the custom headers in the list.

Sample API Requests:

POST /v1.0/screenshot
{
  "url": "http://localhost:8000/detect-headers",
  "format": "png"
}

POST /v1.0/screenshot
{
  "url": "http://localhost:8000/detect-headers",
  "format": "png",
  "request_headers": [
    "X-Custom-Header: TestValue",
    "X-Test-Header: AnotherValue"
  ]
}

Common HTTP Headers

Here are some common HTTP headers you might see:

Request Headers

• User-Agent: Identifies the client software
• Accept: Media types the client can process
• Accept-Language: Preferred languages
• Accept-Encoding: Acceptable content encodings
• Connection: Connection management options
• Cookie: Stored HTTP cookies
• Host: Target host and port
• Referer: Previous web page

Response Headers

• Content-Type: Media type of the content
• Content-Length: Size of the content in bytes
• Server: Server software identification
• Set-Cookie: Sets an HTTP cookie
• Cache-Control: Caching directives
• Expires: Date/time after which the response is considered stale
• Last-Modified: Last modification date of the resource

Custom Header Tester

Use this form to create a URL that will test custom headers: