▶ OK /html/semantics/forms/form-submission-0/form-data-set-usv.html
  │   ▶ FAIL [expected PASS] Strings from form controls should be converted to Unicode scalar values in form submission
  │   │   → assert_equals: expected "69 6e 70 75 74 31 ef bf bd 3d 69 6e 70 75 74 31 ef bf bd 0d 0a 69 6e 70 75 74 32 ef bf bd 3d 69 6e 70 75 74 32 ef bf bd 0d 0a 69 6e 70 75 74 33 ef bf bd 3d 69 6e 70 75 74 33 ef bf bd 0d 0a 69 6e 70 75 74 34 ef bf bd 3d 69 6e 70 75 74 34 ef bf bd 0d 0a" but got "\n  \n  \n    option\n  \n  \n  \n\n\n\n\"use strict\";\n\nconst form = document.querySelector(\"form\");\n\nfor (let el of Array.from(form.querySelectorAll(\"input\"))) { // Firefox/Edge support\n  el.name = el.id + \"\\uDC01\";\n  el.value = el.id + \"\\uDC01\";\n}\n\nconst select = document.querySelector(\"select\");\nselect.name = select.id + \"\\uDC01\";\nselect.firstElementChild.value = select.id + \"\\uDC01\";\n\n"
  │   │ 
  │   │ iframe.onload<@http://web-platform.test:8000/html/semantics/forms/form-submission-0/form-data-set-usv.html:24:20
  │   │ Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2638:25
  └   └ Test.prototype.step_func_done/<@http://web-platform.test:8000/resources/testharness.js:2713:32