message: remove prefixes as we're using data urls now
diff: @@ -259,7 +259,7 @@ class RoomPillPart extends PillPart {
  "crop");
  if (!avatarUrl) {
  initialLetter = Avatar.getInitialLetter(this._room ? this._room.name : this.resourceId);
  - avatarUrl = `../../${Avatar.defaultAvatarUrlForString(this._room ? this._room.roomId : this.resourceId)}`;
  + avatarUrl = Avatar.defaultAvatarUrlForString(this._room ? this._room.roomId : this.resourceId);
  }
  this._setAvatarVars(node, avatarUrl, initialLetter);
  }
  @@ -291,18 +291,13 @@ class UserPillPart extends PillPart {
  }
  const name = this._member.name || this._member.userId;
  const defaultAvatarUrl = Avatar.defaultAvatarUrlForString(this._member.userId);
  - let avatarUrl = Avatar.avatarUrlForMember(
  + const avatarUrl = Avatar.avatarUrlForMember(
  this._member,
  16 * window.devicePixelRatio,
  16 * window.devicePixelRatio,
  "crop");
  let initialLetter = "";
  if (avatarUrl === defaultAvatarUrl) {
  - // the url from defaultAvatarUrlForString is meant to go in an img element,
  - // which has the base of the document. we're using it in css,
  - // which has the base of the theme css file, two levels deeper than the document,
  - // so go up to the level of the document.
  - avatarUrl = `../../${avatarUrl}`;
  initialLetter = Avatar.getInitialLetter(name);
  }
  this._setAvatarVars(node, avatarUrl, initialLetter);
  