Unable to read the Google Sheet Web Page

[maxsxu]

Description of the bug

  The Chrome DevTools evaluation showed: JavaScript isn't enabled in your browser, so this file can't be opened. This typically happens when Chrome is loading a restricted
  Google properties page (like Google Sheets, Google Docs) and the DevTools Protocol is being blocked from executing scripts on it.

  Google actively restricts automated tools and DevTools extensions from running arbitrary JavaScript on their sensitive domains (accounts.google.com, docs.google.com,
  chrome.google.com) for security reasons.

  Let's try another approach. Instead of injecting JavaScript to pull text out, I will take a full accessibility tree snapshot of the page and parse it locally. The snapshot
  tool uses native Chrome APIs that bypass these JS restrictions.

Reproduction

1. Open a google sheet web page https://docs.google.com/spreadsheets/d/xxxx
2. Ask "summary the web page https://docs.google.com/spreadsheets/d/xxxx" in the Gemini CLI

Expectation

There should have no restrictions when the mcp-tools read the web page I've opened.

MCP configuration

No response

Chrome DevTools MCP version

v0.21.0

Chrome version

147.0.7727.101

Coding agent version

Gemini

Model version

Gemini 3

Chat log

No response

Node version

v25.9.0

Operating system

macOS

Extra checklist

• I want to provide a PR to fix this bug

[zyzyzyryxy]

Cannot reproduce. My agent uses click, evaluate_script, wait_for and other tools no problem on a google sheets page.

Some ideas what could have happened:

• agent could face transient page loading issue or timeout and misinterpretted it as javascript being blocked
• agent could access the contents of the page before it was fully loaded
• you might have active enterprise policy that blocks devtools (in that case this is the correct response)

If you face this issue persistently, check:
a) chrome://policy to see if there are any DeveloperTools or Extension restrictions active
b) check if you can manually run console.log in DevTools console on the same page.