404.html

---
title: Oops!
id: 404
permalink: /404.html
layout: general
---

<script type="text/javascript" charset="utf-8">
  const FALLBACK_URL = '';
  const REDIRECT_STYLE = {
    // Redirect completely, appending the path to the newly specified location.
    // This is useful for project renames or moving to a different org.
    FULL: 0,
    // Redirect to the specific location, losing path information
    // This is useful when you just want to capture the audience to known working page.
    SIMPLE: 1,
    // Redirect to the project's 404 page, injecting the original URL.
    FOUROHFOUR_DEFAULT: 2,
    // Redirect to the specified path, replacing ${from} with the original URL.
    FOUROHFOUR_CUSTOM: 3,
  };

  const PROJECTS = {
    live: {
      location: 'https://playtorch.dev/',
      style: REDIRECT_STYLE.FULL,
    },
  };

  // eg "https://facebook.github.io/flux/docs/overview/"
  const ORIGINAL_URL = window.location.href;
  // eg [ "", "flux", "docs", "overview", "" ]
  const PATH_PARTS = window.location.pathname.split('/');
  // eg "flux"
  const PROJECT = PATH_PARTS[1];
  // eg "docs/overview/"
  const SUBPATH = PATH_PARTS.slice(2).join('/');

  
  // Perform the redirect only for explicitly defined projects.
  // Otherwise show the 404 page below
  if (PROJECTS.hasOwnProperty(PROJECT)) {
    let newUrl = '';
    let project = PROJECTS[PROJECT];
    switch (project.style) {
      case REDIRECT_STYLE.FULL:
        newUrl = project.location + SUBPATH;
        break;
      case REDIRECT_STYLE.SIMPLE:
        newUrl = project.location;
        break;
      case REDIRECT_STYLE.FOUROHFOUR_DEFAULT:
        newUrl = project.location + '404.html?from=' + ORIGINAL_URL;
        break;
      case REDIRECT_STYLE.FOUROHFOUR_CUSTOM:
        newUrl = project.location.replace('${from}', ORIGINAL_URL);
        break;
      default:
        newUrl = FALLBACK_URL;
    }

    if (newUrl !== '') {
      window.location.href = newUrl;
    }
  }

</script>
  
<div style="text-align: center;">
  <img src="{{ site.baseurl }}/assets/images/404_sign.png" />

  <h1>Oops!</h1>

  <h4>You've reached a dead end.</h4>

  <h4>
    If you feel like something should be here, you can <a href="https://github.com/pytorch/pytorch.github.io/issues">open an issue</a> on GitHub.
  </h4>

  <h4>
    Click <a href="/">here</a> to go back to the main page.
  </h4>
</div>