# Cereri HTTP catre romfast.ro: User-Agent obligatoriu

`romfast.ro` / `www.romfast.ro` (hosting romarg, 89.42.218.17): firewall-ul taie cererile cu
User-Agent-ul implicit WinHTTP (`Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)`) si
apoi blocheaza IP-ul clientului cateva minute (ERR_CONNECTION_RESET pe 80/443, si din browser).
`roa.romfast.ro` e alt server (188.26.14.103) - neafectat.

- Afectate: `WinHttp.WinHttpRequest.5.1` si `MSXML2.ServerXMLHTTP` (foloseste WinHTTP dedesubt).
  Neafectate: `MSXML2.XMLHTTP` (WinInet) si browserul.
- Regula: orice cerere catre romfast.ro primeste, dupa `.Open(...)`:
  `loHTTP.SetRequestHeader('User-Agent', 'Mozilla/5.0 (Windows NT 10.0; Win64; x64)')`
- Simptom in VFP: "OLE IDispatch exception code 0 from msxml6.dll: The download of the specified
  resource has failed." - vine din fallback-ul MSXML, dupa ce WinHTTP a blocat deja IP-ul.
- Testare: niciodata cu User-Agent-ul implicit WinHTTP (blocheaza IP-ul biroului). Inainte si dupa:
  `(Invoke-WebRequest https://romfast.ro/ -UseBasicParsing -TimeoutSec 8).StatusCode` -> 200.
- Corectate deja (COMUN\programe): `anaf_efactura.prg` (newToken, refreshToken),
  `xmlefactura-preview.prg` (editare in browser), `oproceduri_comune.prg` (HTTPDownloadFile),
  `actualizare_aplicatie.prg`.