[update-the-source-set.html]
  type: testharness
  [<img srcset="data:,b" src="data:,a" data-expect="data:,b">]
    expected: FAIL

  [<img src="data:,a" srcset="data:,b" data-expect="data:,b"><!-- srcset after src -->]
    expected: FAIL

  [<img src="data:,a" srcset="data:,b 1x" data-expect="data:,b">]
    expected: FAIL

  [<img src="data:,a" srcset="data:,b 1.0x" data-expect="data:,b">]
    expected: FAIL

  [<img src="data:,a" srcset="data:,b 1e0x" data-expect="data:,b">]
    expected: FAIL

  [<img src="data:,a" srcset="data:,b 10000w" sizes="1px" data-expect="data:,b">]
    expected: FAIL

  [<img src="data:,a" srcset="data:,b 10000w, data:,c 10000x" sizes="1px" data-expect="data:,b">]
    expected: FAIL

  [<img src="data:,a" srcset="data:,b 10000x, data:,c 10000w" sizes="1px" data-expect="data:,b">]
    expected: FAIL

  [<img src="data:,a" srcset="data:,b 1w" sizes="10000px" data-expect="data:,b">]
    expected: FAIL

  [<img src="data:,a" srcset="data:,b 1w, data:,c 0.0001x" sizes="10000px" data-expect="data:,b">]
    expected: FAIL

  [<img src="data:,a" srcset="data:,b 0.0001x, data:,c 1w" sizes="10000px" data-expect="data:,b">]
    expected: FAIL

  [<img srcset="data:,a" data-expect="data:,a">]
    expected: FAIL

  [<picture><source srcset="data:,b" media=""><img src="data:,a" data-expect="data:,b"></picture>]
    expected: FAIL

  [<picture><source srcset="data:,b" media="all"><img src="data:,a" data-expect="data:,b"></picture>]
    expected: FAIL

  [<picture><source srcset="data:,b" media="all and (min-width:0)"><img src="data:,a" data-expect="data:,b"></picture>]
    expected: FAIL

  [<picture><source srcset="data:,b" media="not all and (max-width:0)"><img src="data:,a" data-expect="data:,b"></picture>]
    expected: FAIL

  [<picture><source srcset="data:,b" media="all, !"><img src="data:,a" data-expect="data:,b"></picture>]
    expected: FAIL

  [<picture><source srcset="data:,b" media=", all"><img src="data:,a" data-expect="data:,b"></picture>]
    expected: FAIL

  [<picture><source srcset="data:,b" type=""><img src="data:,a" data-expect="data:,b"></picture>]
    expected: FAIL

  [<picture><source srcset="data:,b" type=" "><img src="data:,a" data-expect="data:,b"></picture>]
    expected: FAIL

  [<picture><source srcset="data:,b" type="image/gif"><img src="data:,a" data-expect="data:,b"></picture>]
    expected: FAIL

  [<picture><source srcset="data:,b" type=" image/gif"><img src="data:,a" data-expect="data:,b"></picture>]
    expected: FAIL

  [<picture><source srcset="data:,b" type="image/gif "><img src="data:,a" data-expect="data:,b"></picture>]
    expected: FAIL

  [<picture><source srcset="data:,b" type="image/gif;"><img src="data:,a" data-expect="data:,b"></picture>]
    expected: FAIL

  [<picture><source srcset="data:,b" type="image/gif;encodings"><img src="data:,a" data-expect="data:,b"></picture>]
    expected: FAIL

  [<picture><source srcset="data:,b" type="image/gif;encodings="><img src="data:,a" data-expect="data:,b"></picture>]
    expected: FAIL

  [<picture><source srcset="data:,b" type="image/gif;encodings=foobar"><img src="data:,a" data-expect="data:,b"></picture>]
    expected: FAIL

  [<picture><source srcset="data:,b" type="image/png"><img src="data:,a" data-expect="data:,b"></picture>]
    expected: FAIL

  [<picture><source srcset="data:,b" type="image/jpeg"><img src="data:,a" data-expect="data:,b"></picture>]
    expected: FAIL

  [<picture><source srcset="data:,b" type="image/svg+xml"><img src="data:,a" data-expect="data:,b"></picture>]
    expected: FAIL

  [<picture><source srcset="data:,b" type="image/x-icon"><img src="data:,a" data-expect="data:,b"></picture>]
    expected: FAIL

  [<picture><source srcset="data:,b"><img data-expect="data:,b"></picture>]
    expected: FAIL

  [<picture><svg></svg><source srcset="data:,b"><img src="data:,a" data-expect="data:,b"></picture>]
    expected: FAIL

  [<picture><svg><!--<font face> tag breaks out of svg--><font face=""></font><source srcset="data:,b"></source></svg><img src="data:,a" data-expect="data:,b"></picture>]
    expected: FAIL

  [<picture><svg><!--<font face> tag breaks out of svg--></svg><font face=""></font><source srcset="data:,b"><img src="data:,a" data-expect="data:,b"></picture>]
    expected: FAIL