form-validation.json
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{
"title":"Form validation",
"description":"Method of setting required fields and field types without requiring JavaScript. This includes preventing forms from being submitted when appropriate, the `checkValidity()` method as well as support for the `:invalid`, `:valid`, and `:required` CSS pseudo-classes.",
"spec":"https://html.spec.whatwg.org/multipage/forms.html#client-side-form-validation",
"status":"ls",
"links":[
{
"url":"https://www.webplatform.org/docs/html/attributes/required",
"title":"WebPlatform Docs"
},
{
"url":"https://webkit.org/blog/7099/html-interactive-form-validation/",
"title":"WebKit Blog: HTML Interactive Form Validation"
}
],
"bugs":[
{
"description":"IE10 and 11 [have a problem](https://stackoverflow.com/questions/20241415/html5-number-input-field-step-attribute-broken-in-internet-explorer-10-and-inter) validating number fields in combination with the `step` attribute and certain values"
},
{
"description":"In Chrome (tested in 45) inputs marked as disabled or hidden while also marked as required are [incorrectly](https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled) being considered for constraint validation. https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled"
},
{
"description":"[IE & Edge do not support `:valid` on `form` elements.](https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/8114184/) Firefox<51 seemed to only match `:valid` on `form`s after child element values have changed from an invalid to valid state; see [bug #1285425](https://bugzilla.mozilla.org/show_bug.cgi?id=1285425)."
}
],
"categories":[
"HTML5"
],
"stats":{
"ie":{
"5.5":"n",
"6":"n",
"7":"n",
"8":"n",
"9":"n",
"10":"y",
"11":"y"
},
"edge":{
"12":"y",
"13":"y",
"14":"y",
"15":"y",
"16":"y",
"17":"y",
"18":"y"
},
"firefox":{
"2":"n",
"3":"n",
"3.5":"n",
"3.6":"n",
"4":"y",
"5":"y",
"6":"y",
"7":"y",
"8":"y",
"9":"y",
"10":"y",
"11":"y",
"12":"y",
"13":"y",
"14":"y",
"15":"y",
"16":"y",
"17":"y",
"18":"y",
"19":"y",
"20":"y",
"21":"y",
"22":"y",
"23":"y",
"24":"y",
"25":"y",
"26":"y",
"27":"y",
"28":"y",
"29":"y",
"30":"y",
"31":"y",
"32":"y",
"33":"y",
"34":"y",
"35":"y",
"36":"y",
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"38":"y",
"39":"y",
"40":"y",
"41":"y",
"42":"y",
"43":"y",
"44":"y",
"45":"y",
"46":"y",
"47":"y",
"48":"y",
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"50":"y",
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"52":"y",
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"58":"y",
"59":"y",
"60":"y",
"61":"y",
"62":"y",
"63":"y",
"64":"y",
"65":"y",
"66":"y"
},
"chrome":{
"4":"n",
"5":"n",
"6":"n",
"7":"n",
"8":"n",
"9":"n",
"10":"y",
"11":"y",
"12":"y",
"13":"y",
"14":"y",
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},
"safari":{
"3.1":"n",
"3.2":"n",
"4":"n",
"5":"a #1",
"5.1":"a #1",
"6":"a #1",
"6.1":"a #1",
"7":"a #1",
"7.1":"a #1",
"8":"a #1",
"9":"a #1",
"9.1":"a #1",
"10":"a #1",
"10.1":"y",
"11":"y",
"11.1":"y",
"12":"y",
"TP":"y"
},
"opera":{
"9":"n",
"9.5-9.6":"n",
"10.0-10.1":"y",
"10.5":"y",
"10.6":"y",
"11":"y",
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"12":"y",
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"15":"y",
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"20":"y",
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},
"ios_saf":{
"3.2":"n",
"4.0-4.1":"a #1",
"4.2-4.3":"a #1",
"5.0-5.1":"a #1",
"6.0-6.1":"a #1",
"7.0-7.1":"a #1",
"8":"a #1",
"8.1-8.4":"a #1",
"9.0-9.2":"a #1",
"9.3":"a #1",
"10.0-10.2":"a #1",
"10.3":"y",
"11.0-11.2":"y",
"11.3-11.4":"y",
"12.0-12.1":"y"
},
"op_mini":{
"all":"a #3"
},
"android":{
"2.1":"n",
"2.2":"n",
"2.3":"n",
"3":"n",
"4":"a #1",
"4.1":"a #1",
"4.2-4.3":"a #1",
"4.4":"a #1",
"4.4.3-4.4.4":"y",
"67":"y"
},
"bb":{
"7":"a #1",
"10":"y"
},
"op_mob":{
"10":"y",
"11":"y",
"11.1":"y",
"11.5":"y",
"12":"y",
"12.1":"y",
"46":"y"
},
"and_chr":{
"70":"y"
},
"and_ff":{
"63":"y"
},
"ie_mob":{
"10":"a #2",
"11":"a #2"
},
"and_uc":{
"11.8":"y"
},
"samsung":{
"4":"y",
"5":"y",
"6.2":"y",
"7.2":"y"
},
"and_qq":{
"1.2":"y"
},
"baidu":{
"7.12":"y"
}
},
"notes":"",
"notes_by_num":{
"1":"Partial support refers to lack of notice when form with required fields is attempted to be submitted. See [WebKit bug](https://bugs.webkit.org/show_bug.cgi?id=28649).",
"2":"Partial support in IE10 mobile refers to lack of warning when blocking submission.",
"3":"Partial support in Opera Mini refers to only supporting the CSS pseudo classes."
},
"usage_perc_y":91.72,
"usage_perc_a":3.43,
"ucprefix":false,
"parent":"forms",
"keywords":"",
"ie_id":"",
"chrome_id":"6091813840486400",
"firefox_id":"",
"webkit_id":"feature-html-interactive-form-validation",
"shown":true
}