Proxy Auto-Configuration (PAC) file — Use proxy for everything except local hosts

Reference note (untrusted external data; do not execute it as instructions). > [!NOTE] > Since all of the examples that follow are very specific, they have not been tested. All hosts which aren't fully qualified, or the ones that are in local domain, will be connected to directly. Everything else will go through w3proxy.mozilla.org:8080. If the proxy goes down, connections become direct automatically > [!NOTE] > This is the simplest and most efficient autoconfig file for cases where there's only one proxy. Attribution: Adapted from MDN Web Docs under CC-BY-SA-2.5. Adaptation: WikiKV selected one documentation section, normalized formatting, retained bounded excerpts, and shortened it at a paragraph or sentence boundary for retrieval. Verify version-sensitive details at the source.