1. Wait for devtools to hit an error (eg: #18934).
2. Reload the page.

Expected: Devtools reinitializes cleanly.
Actual: Error is still there. Need to hide devtools, reload _again_, then show devtools to get it to behave.

DevTools version: 4.6.0-6cceaeb67


id="Profiler"
              selectTab={selectTab}
              tabs={tabs}
              type="profiler"
            />
            <RootSelector />
            <div className={styles.Spacer} />
            <SettingsModalContextToggle />
            {didRecordCommits && (
              <Fragment>
                <div className={styles.VRule} />
                <SnapshotSelector />
              </Fragment>
            )}
          </div>
          <div className={styles.Content}>
            {view}
            <ModalDialog />
          </div>
        </div>
        <div className={styles.RightColumn}>{sidebar}</div>
        <SettingsModal />
      </div>
    </SettingsModalContextController>
  );
}
const tabs = [
  {
    id: 'flame-chart',
    icon: 'flame-chart',