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wt17 merged 3 commits into from
Nov 18, 2025
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Update README.md. #95

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Update README.md.
wt17 Nov 17, 2025
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wt17 Nov 18, 2025
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wt17 Nov 18, 2025
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24 changes: 24 additions & 0 deletions README.md
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Expand Up @@ -137,3 +137,27 @@ The `main.py` script is the command-line interface (CLI) for running the browser
| GEMINI_API_KEY | Your API key for the Gemini model. | Yes |
| BROWSERBASE_API_KEY | Your API key for Browserbase. | Yes (when using the browserbase environment) |
| BROWSERBASE_PROJECT_ID | Your Project ID for Browserbase. | Yes (when using the browserbase environment) |

## Known Issues

### Playwright Dropdown Menu

On certain operating systems, the Playwright browser is unable to capture `<select>` elements because they are rendered by the operating system. As a result, the agent is unable to send the correct screenshot to the model.

There are several ways to mitigate this.

1. Use the Browserbase option instead of Playwright.
2. Inject a script like [proxy-select](https://github.com/amitamb/proxy-select) to render a custom `<select>` element. You must inject `proxy-select.css` and `proxy-select.js` into each page that has a non-custom `<select>` element. You can do this in the [`Playwright.__enter__`](https://github.com/google-gemini/computer-use-preview/blob/main/computers/playwright/playwright.py#L100) method by adding a few lines of code, like the following (replacing `PROXY_SELECT_JS` and `PROXY_SELECT_CSS` with the appropriate variables):

```python
self._page.add_init_script(PROXY_SELECT_JS)
def inject_style(page):
try:
page.add_style_tag(content=PROXY_SELECT_CSS)
except Exception as e:
print(f"Error injecting style: {e}")

self._page.on('domcontentloaded', inject_style)
```

Note, option 2 does not work 100% of the time, but is a temporary workaround for certain websites. The better option is to use Browserbase.