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Tirsvad 7d139f86c7 MIL-006 wiki in three languages
Delivers MIL-006 tasks 1 to 4: the wiki pages in `docs/wiki/` in English, Danish and Bahasa Malaysia (Home plus one page per lecture step, each with its screenshot and a "what we gained" section, and a shared `_Sidebar.md`), laid out as `framework/process/wiki.md` says (English without suffix, `-da` and `-ms` for the others, a language line on every page). The README links to the wiki.

Checked: the three languages have the same five pages; every page starts with the language line; code, commands and file names stay in English. There is no QC checklist for wiki pages, so there is no RC record. Publishing to the host's wiki (task 5, issue #31) follows after this merge.

Task: MIL-006#1
Task: MIL-006#2
Task: MIL-006#3
Task: MIL-006#4
2026-10-28 14:50:58 +08:00

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# Step 3: request headers
🌐 **English** · [Dansk](Step-3-Request-Headers-da) · [Bahasa Melayu](Step-3-Request-Headers-ms)
**Assignment.** Send browser-like headers with the request: at least `User-Agent` and `Accept-Language`.
**What we built.** `DEFAULT_HEADERS` in `constants.py` (without `Host` and `X-Amzn-Trace-Id`) and `RequestsPageFetcher`, which passes them as `headers=` to `requests.get`.
What a browser sends to httpbin.org/headers, and what the bot sends (`Host` is added by `requests`):
![Headers sent by a browser](https://git.tirsystem.com/Tirsvad-Udemy-100-days-of-code/047-amazon-price-tracker/raw/branch/main/docs/images/step-3-browser-headers.png)
![Headers sent by the bot](https://git.tirsystem.com/Tirsvad-Udemy-100-days-of-code/047-amazon-price-tracker/raw/branch/main/docs/images/step-3-bot-headers.png)
**What we gained**
- A request carries more than the URL: the browser, the system and the language travel in headers.
- With the right headers a server can answer in your language and currency.
- A script without headers looks like a bot, and many servers block bots.
- One read-only definition of the headers, and tests that check what is sent.