---
id: "7bca4c5c-8581-4760-bdc3-1414276f4c6f"
name: "Open SIMbook Button"
micro_summary: "How to find and click the \"Open SIMbook\" button — selector collision with Sign Out, reliable text-matching, and click_at_xy pattern."
status: "in_progress"
see_also: []
scope: "Probing and clicking the \"Open SIMbook\" button on simbook details pages (simnetonline.com/sp/assignments/simbooks/details/#). Covers selector hazards, reliable element identification, coordinate extraction, and the click_at_xy pattern."
warnings: "`goto_url()` to the launch href does NOT work — the SIMnet redirect/SSO chain only triggers on a real button click. Always use `click_at_xy()` on the button, never navigate directly to the href."
---
## Page Context

Simbook details page: `simnetonline.com/sp/assignments/simbooks/details/11404171`

The page lists all sections (Chapter Overview, 4-1, Pause & Practice, Guided Projects, etc.) and has one prominent "Open SIMbook" button that launches the simbook player.

## Button HTML

```html
<a href="https://sfsu.simnetonline.com/sp/assignments/simbooks/launch/11404171"
   class="btn btn-primary btn-block"> Open SIMbook</a>
```

## Selector Hazard: `.btn-primary` Collision

**`.btn-primary` matches TWO elements on the page:**
1. The "Open SIMbook" launch button (what we want)
2. The "Sign Out" button in the header (what we DON'T want)

Querying a single `.btn-primary` gets whichever comes first in the DOM (the Sign Out header button). Never use `querySelector('.btn-primary')` alone.

## Reliable Identification: Text Match

`.btn-primary` collision — two elements share this class. Follow the general [[CDP Probing|a895c706-8784-408a-ac2f-99778d65129d]] text-match pattern: iterate all `.btn-primary`, filter by `textContent.trim() === "Open SIMbook"`.

## Click Pattern

Use `click_at_xy()` from the [[CDP Probing|a895c706-8784-408a-ac2f-99778d65129d]] text-match pattern. **Must click** — `goto_url(href)` does NOT work (see warnings).

```python
click_at_xy(600, 596)
wait_for_load()
wait(2)  # simbook player loads in an iframe, needs extra settle time
```

## Result

Navigates to the simbook player at:
```
simnetonline.com/sb/ac24_ip_04_co?l=2901&a=11404171&t=5&redirect_uri=...
```

The player loads the section content (the first section `ac24_ip_04_co` — Chapter Overview — is opened by default).