[blitframebuffer-multisampled-readbuffer.html]
  expected: ERROR
  [WebGL test #1: Framebuffer incomplete.]
    expected:
      if os == "linux": FAIL

  [WebGL test #2: Framebuffer incomplete.]
    expected:
      if os == "linux": FAIL

  [WebGL test #1: getError expected: NO_ERROR. Was INVALID_ENUM : setup draw framebuffer should succeed]
    expected:
      if os == "mac": FAIL

  [WebGL test #2: successfullyParsed should be true (of type boolean). Was undefined (of type undefined).]
    expected: FAIL