| This is a testharness.js-based test. | |
| FAIL XMLHttpRequest: progress events grow response body size, unknown content-length assert_unreached: onprogress not called multiple times, or response body did not grow. Reached unreachable code | |
| FAIL XMLHttpRequest: progress events grow response body size, known content-length assert_unreached: onprogress not called multiple times, or response body did not grow. Reached unreachable code | |
| Harness: the test ran to completion. | |