[HTML5] canvas 브라우저 별 차이

우선 w3c에 정의된 canvas의 인터페이스.
http://dev.w3.org/html5/canvas-api/canvas-2d-api.html

interface CanvasElement : Element {
    attribute unsigned long width;
    attribute unsigned long height;

    Object getContext(in DOMString contextId);

    DOMString toDataURL(optional in DOMString type, in any... args);
};

다음은 2개의 브라우저에서 구현된 canvas. (IE는 canvas가 없음)
원래 있어야 할 인터페이스는 빨간색 굵은 글씨.
서로에게 없는 건 주황색(?)으로 표시.

	Chrome	FireFox
boolean	draggable isContentEditable addEventListener	draggable mozOpaque spellcheck
function	addEventListener appendChild blur cloneNode compareDocumentPosition contains dispatchEvent focus getAttribute getAttributeNS getAttributeNode getAttributeNodeNS getBoundingClientRect getClientRects getContext getElementsByClassName getElementsByTagName getElementsByTagNameNS hasAttribute hasAttributeNS hasAttributes hasChildNodes insertAdjacentElement insertAdjacentHTML insertAdjacentText insertBefore isDefaultNamespace isEqualNode isSameNode isSupported lookupNamespaceURI lookupPrefix normalize querySelector querySelectorAll removeAttribute removeAttributeNS removeAttributeNode removeChild removeEventListener replaceChild scrollByLines scrollByPages scrollIntoView scrollIntoViewIfNeeded setAttribute setAttributeNS setAttributeNode setAttributeNodeNS toDataURL webkitMatchesSelector	appendChild blur cloneNode compareDocumentPosition dispatchEvent focus getAttribute getAttributeNS getAttributeNode getAttributeNodeNS getBoundingClientRect getClientRects getContext getElementsByClassName getElementsByTagName getElementsByTagNameNS getFeature getUserData hasAttribute hasAttributeNS hasAttributes hasChildNodes insertBefore isDefaultNamespace isEqualNode isSameNode isSupported lookupNamespaceURI lookupPrefix mozMatchesSelector normalize querySelector querySelectorAll removeAttribute removeAttributeNS removeAttributeNode removeChild removeEventListener replaceChild setAttribute setAttributeNS setAttributeNode setAttributeNodeNS setUserData toDataURL
number	ATTRIBUTE_NODE CDATA_SECTION_NODE COMMENT_NODE DOCUMENT_FRAGMENT_NODE DOCUMENT_NODE DOCUMENT_POSITION_CONTAINED_BY DOCUMENT_POSITION_CONTAINS DOCUMENT_POSITION_DISCONNECTED DOCUMENT_POSITION_FOLLOWING DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC DOCUMENT_POSITION_PRECEDING DOCUMENT_TYPE_NODE ELEMENT_NODE ENTITY_NODE ENTITY_REFERENCE_NODE NOTATION_NODE PROCESSING_INSTRUCTION_NODE TEXT_NODE childElementCount clientHeight clientLeft clientTop clientWidth height nodeType offsetHeight offsetLeft offsetTop offsetWidth scrollHeight scrollLeft scrollTop scrollWidth tabIndex width	ATTRIBUTE_NODE CDATA_SECTION_NODE COMMENT_NODE DOCUMENT_FRAGMENT_NODE DOCUMENT_NODE DOCUMENT_POSITION_CONTAINED_BY DOCUMENT_POSITION_CONTAINS DOCUMENT_POSITION_DISCONNECTED DOCUMENT_POSITION_FOLLOWING DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC DOCUMENT_POSITION_PRECEDING DOCUMENT_TYPE_NODE ELEMENT_NODE ENTITY_NODE ENTITY_REFERENCE_NODE NOTATION_NODE PROCESSING_INSTRUCTION_NODE TEXT_NODE childElementCount clientHeight clientLeft clientTop clientWidth height nodeType offsetHeight offsetLeft offsetTop offsetWidth scrollHeight scrollLeft scrollTop scrollWidth tabIndex width
object	attributes childNodes children firstChild firstElementChild lastChild lastElementChild nextElementSibling nextSibling nodeValue offsetParent ownerDocument parentElement parentNode prefix previousElementSibling previousSibling style	attributes childNodes children classList firstChild firstElementChild lastChild lastElementChild nextElementSibling nextSibling nodeValue offsetParent ownerDocument parentNode prefix previousElementSibling previousSibling style
string	baseURI className contentEditable dir id innerHTML innerText lang localName namespaceURI nodeName outerHTML outerText tagName textContent title	baseURI className contentEditable dir id innerHTML lang localName namespaceURI nodeName tagName textContent title