message: Fix memory leak on log page.
diff: @@ -4,11 +4,14 @@ const token = authSvc.getToken();
  export const stream = (url, loadStart, notify) => {
  const xhr = new XMLHttpRequest();
  - let offset = 0;
  const promise = new Promise((resolve, reject) => {
  + let offset = 0;
  +
  const nextChunk = () => {
  - const remainder = xhr.responseText.substr(offset);
  + let remainder = xhr.responseText.substr(offset);
  + // Work around a bug in v8 that causes excessive memory usage (https://bugs.chromium.org/p/v8/issues/detail?id=2869)
  + remainder = `.${remainder}`.substr(1);
  offset = xhr.responseText.length;
  notify(remainder);
  };
  