Custom Attributes
PROBLEM
The get_attributes().getAttribute(attributeName) method does not work.
DESCRIPTION
By design all custom attributes which are valid html attributes (such as "type", "onclick" etc) are rendered as html attributes and are not serialized in the attributes collection. You can still access them on the server-side though. If you need to access them on the client-side you can use this code:
var myValidHtmlCustomAttribute = node.get_textElement().getAttribute('type');
RECOMMENDATION
Avoid using names of custom attributes which are valid html attributes. These include:
"accesskey",
"align",
"class",
"dir",
"disabled",
"id",
"href",
"hreflang",
"lang",
"language",
"rel",
"rev",
"style",
"tabindex",
"target",
"title",
"type",
"urn",
"onactivate",
"onafterupdate",
"onbeforeactivate",
"onbeforecopy",
"onbeforecut",
"onbeforedeactivate",
"onbeforeeditfocus",
"onbeforepaste",
"onbeforeupdate",
"onblur",
"onclick",
"oncontextmenu",
"oncontrolselect",
"oncopy",
"oncut",
"ondblclick",
"ondeactivate",
"ondrag",
"ondragend",
"ondragenter",
"ondragleave",
"ondragover",
"ondragstart",
"ondrop",
"onerrorupdate",
"onfilterchange",
"onfocus",
"onfocusin",
"onfocusout",
"onhelp",
"onkeydown",
"onkeypress",
"onkeyup",
"onlayoutcomplete",
"onlosecapture",
"onmousedown",
"onmouseenter",
"onmouseleave",
"onmousemove",
"onmouseout",
"onmouseover",
"onmouseup",
"onmousewheel",
"onmove",
"onmoveend",
"onmovestart",
"onpaste",
"onpropertychange",
"onreadystatechange",
"onresize",
"onresizeend",
"onresizestart",
"onscroll",
"onselectstart",
"ontimeerror",
"_designerregion"