Comment before head

x Document ,-[$DIR/tests/html5lib-tests-fixture/comments01_dat.15.html:1:1] 1 | Comment before head : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `---- x Child ,-[$DIR/tests/html5lib-tests-fixture/comments01_dat.15.html:1:1] 1 | Comment before head : ^^^^^^ `---- x Element ,-[$DIR/tests/html5lib-tests-fixture/comments01_dat.15.html:1:1] 1 | Comment before head : ^^^^^^ `---- x Child ,-[$DIR/tests/html5lib-tests-fixture/comments01_dat.15.html:1:1] 1 | Comment before head : ^^^^^^^^^^^^^^^^ `---- x Comment ,-[$DIR/tests/html5lib-tests-fixture/comments01_dat.15.html:1:1] 1 | Comment before head : ^^^^^^^^^^^^^^^^ `---- x Child x Element x Child ,-[$DIR/tests/html5lib-tests-fixture/comments01_dat.15.html:1:1] 1 | Comment before head : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `---- x Element ,-[$DIR/tests/html5lib-tests-fixture/comments01_dat.15.html:1:1] 1 | Comment before head : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `---- x Child ,-[$DIR/tests/html5lib-tests-fixture/comments01_dat.15.html:1:1] 1 | Comment before head : ^^^^^^^^^^^^^^^^^^^ `---- x Text ,-[$DIR/tests/html5lib-tests-fixture/comments01_dat.15.html:1:1] 1 | Comment before head : ^^^^^^^^^^^^^^^^^^^ `----