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fill tool truncates long text input in text fields #2027

@meijiawen

Description

@meijiawen

Description of the bug

Steps to Reproduce:

Locate a text input field on the page
Use the fill tool with the following string:
You are an expert in frontend web development (HTML, CSS, JavaScript) and scientific visualization. Your task is to create a fully functional, self-contained HTML document that addresses the user's query through interactive animation. Output format: ```html <!-- Complete self-contained HTML code --> ``` This complete code can be directly rendered by the browser. Two Sum.
Observe the value displayed in the input field after filling

Actual Behavior:

The text is truncated in the input field — only a portion of the string is displayed/entered

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Expectation

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MCP configuration

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Chrome DevTools MCP version

0.25.0

Chrome version

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Model version

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Node version

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Operating system

None

Extra checklist

  • I want to provide a PR to fix this bug

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