The annotation reference tests now show the date/time placeholder, but since localization is not active we don't see the actual date/time string. It would be nice to be able to have this in the reference images.
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      this._info(
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          message +
          " Script: " +
          source +
          " Line: " +
          line +
          " Column: " +
          column +
          " StackTrace: " +
          error
      );
    };
    this._info("User agent: " + navigator.userAgent);
    this._log(`Harness thinks this browser is ${this.browser}\n`);
    this._log('Fetching manifest "' + this.manifestFile + '"... ');
    if (this.delay > 0) {
      this._log("\nDelaying for " + this.delay + " ms...\n");
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    setTimeout(async () => {