phacility/phabricator · error · Exception

Encountered loop while following redirects.

Error message

Encountered loop while following redirects.

What it means

Error "Encountered loop while following redirects." thrown in phacility/phabricator.

Source

Thrown at src/applications/files/storage/PhabricatorFile.php:653

        if ($status->isRedirect()) {
          // This is an HTTP 3XX status, so look for a "Location" header.
          $location = null;
          foreach ($headers as $header) {
            list($name, $value) = $header;
            if (phutil_utf8_strtolower($name) == 'location') {
              $location = $value;
              break;
            }
          }

          // HTTP 3XX status with no "Location" header, just treat this like
          // a normal HTTP error.
          if ($location === null) {
            throw $status;
          }

          if (isset($redirects[$location])) {
            throw new Exception(
              pht('Encountered loop while following redirects.'));
          }

          $redirects[$location] = $location;
          $current = $location;
          // We'll fall off the bottom and go try this URI now.
        } else if ($status->isError()) {
          // This is something other than an HTTP 2XX or HTTP 3XX status, so
          // just bail out.
          throw $status;
        } else {
          // This is HTTP 2XX, so use the response body to save the file data.
          // Provide a default name based on the URI, truncating it if the URI
          // is exceptionally long.

          $default_name = basename($uri);
          $default_name = id(new PhutilUTF8StringTruncator())
            ->setMaximumBytes(64)

View on GitHub (pinned to 5720a38cfe)

When it happens

Trigger: Thrown at src/applications/files/storage/PhabricatorFile.php:653 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of phacility/phabricator@5720a38cfe (2026-08-21). Data as JSON: /api/errors/d44536a8f86dd551. Report an issue: GitHub.