Screenshot Hangs on Non-Activated Tabs in Both Headless & Non-Headless Modes

[Dastagirireddy]

Rod Version: v0.116.2

The code to demonstrate your question

package main

import (
	"log"
	"os"

	"github.com/go-rod/rod"
	"github.com/go-rod/rod/lib/launcher"
)

func main() {
	// Launch browser in non-headless mode
	url := launcher.New().Headless(false).MustLaunch()

	browser := rod.New().ControlURL(url).MustConnect()
	defer browser.MustClose()

	page1 := browser.MustPage("about:blank")
	page2 := browser.MustPage("about:blank") // multiple tabs

	pages := []*rod.Page{page1, page2}

	page := pages[0]

	page.MustNavigate("https://google.com").MustWaitLoad()

	// Confirm page is loaded (DOM snapshot works fine)
	log.Println("DOM snapshot captured")

	// This call hangs indefinitely unless page1.MustActivate() is used before
	screenshot, err := page.Screenshot(false, nil)
	if err != nil {
		log.Fatalf("Failed to take screenshot: %v", err)
	}

	// Save screenshot to file
	err = os.WriteFile("screenshot.png", screenshot, 0644)
	if err != nil {
		log.Fatalf("Failed to save screenshot: %v", err)
	}

	log.Println("✅ Screenshot saved to screenshot.png")
}

What you got

Calling .Screenshot() on a non-active page (i.e., not the most recently opened tab) causes the call to hang indefinitely - even in headless mode.

What you expect to see

Screenshot should be captured successfully regardless of whether the page is focused or not — similar to Puppeteer or Playwright behavior.

What have you tried to solve the question

1. Verified that page1.MustCaptureDOMSnapshot() works correctly -- proves the page is rendered.
2. Added page1.MustActivate() before .Screenshot() -- fixes the issue.
3. Tried MustScrollIntoView() -- had no effect
4. Happens consistently in both headless and non-headless modes
5. Implemented serialization + manual focus workaround, but behavior is surprising

[github-actions]

Please fix the format of your markdown:

3 MD022/blanks-around-headings/blanks-around-headers Headings should be surrounded by blank lines [Expected: 1; Actual: 0; Below] [Context: "## The code to demonstrate your question"]
4 MD031/blanks-around-fences Fenced code blocks should be surrounded by blank lines [Context: "```go"]
59 MD022/blanks-around-headings/blanks-around-headers Headings should be surrounded by blank lines [Expected: 1; Actual: 0; Below] [Context: "## What have you tried to solve the question"]
60 MD032/blanks-around-lists Lists should be surrounded by blank lines [Context: "1. Verified that ```page1.Must..."]

_{generated by check-issue}

[demaxiya1982]

hasWebdriverTrue: True if navigator.webdriver is set to true, which is a direct indicator of browser automation (e.g., Selenium, Puppeteer, Playwright).