An Internet Explorer specific snippet useful on MS IE9 and above when XML5633 error message is shown in the Dev Tool console: "XML5633: End-tag name does not match the corresponding start-tag name".

ie-xml5633-monkeypatch.js

/*@cc_on
	@if (@_jscript_version >= 9)
		// (C) Giorgio Arata - Mit Style License.
		(typeof DOMParser === "function") && !function(dp) {
			var TEXT_SE = "[^<]+",
				TILL_HYPHEN = "[^-]*-",
				TILL_HYPHEN2 = TILL_HYPHEN + "([^-]" + TILL_HYPHEN + ")*-",
				COMMENT_CE = TILL_HYPHEN2 + ">?",
				TILL_RSB = "[^]]*]([^]]+])*]+",
				CDATA_CE = TILL_RSB + "([^]>]" + TILL_RSB + ")*>",
				S = "[ \\n\\t\\r]+",
				NAME_S = "[A-Za-z_:]|[^\\x00-\\x7F]",
				NAME_C = "[A-Za-z0-9_:.-]|[^\\x00-\\x7F]",
				NAME = "(" + NAME_S + ")(" + NAME_C + ")*",
				QUOTE_SE = '"[^"]' + "*" + '"' + "|'[^']*'",
				DT_IDENT_SE = S + NAME + "(" + S + "(" + NAME + "|" + QUOTE_SE + "))*",
				MARKUP_DECL_CE = "([^]\"'><]+|" + QUOTE_SE + ")*>",
				S1 = "[\\n\\r\\t ]",
				TILL_QM = "[^?]*\\?+",
				PI_TAIL = "\\?>|" + S1 + TILL_QM + "([^>?]" + TILL_QM + ")*>",
				DT_ITEM_SE = "<(!(--" + TILL_HYPHEN2 + ">|[^-]" + MARKUP_DECL_CE + ")|\\?" + NAME + "(" + PI_TAIL + "))|%" + NAME + ";|" + S,
				DOC_TYPE_CE = DT_IDENT_SE + "(" + S + ")?(\\[(" + DT_ITEM_SE + ")*](" + S + ")?)?>?",
				DECL_CE = "--(" + COMMENT_CE + ")?|\\[CDATA\\[(" + CDATA_CE + ")?|DOCTYPE(" + DOC_TYPE_CE + ")?",
				PI_CE = NAME + "(" + PI_TAIL + ")?",
				END_TAG_CE = NAME + "(" + S + ")?>?",
				ATT_VAL_SE = '"[^<"]' + "*" + '"' + "|'[^<']*'",
				ELEM_TAG_CE = NAME + "(" + S + NAME + "(" + S + ")?=(" + S + ")?(" + ATT_VAL_SE + "))*(" + S + ")?/?>?",
				MARKUP_SPE = "<(!(" + DECL_CE + ")?|\\?(" + PI_CE + ")?|/(" + END_TAG_CE + ")?|(" + ELEM_TAG_CE + ")?)",
				XML_SPE = TEXT_SE + "|" + MARKUP_SPE;
			
			if ((dp.prototype.parseFromString + "").indexOf("[native code]") > -1) {
				dp.prototype.parseFromString = (function(f, g) {
					return function() { 
						var args = arguments, self = this;
						return g(function() { return f.apply(self, args); }, args);
					};
				})(dp.prototype.parseFromString, function(parseFromString, args) {
					var r, m, m1, m2, m3, matches = args[0].match(new RegExp(XML_SPE, "g"));
					for (var i = 0, l = !matches ? 0 : matches.length; i < l; ++i) {
						switch(m = matches[i]) {
							case "<area>":
							case "<base>":
							case "<br>":
							case "<col>":
							case "<command>":
							case "<embed>":
							case "<hr>":
							case "<img>":
							case "<input>":
							case "<link>":
							case "<meta>":
							case "<param>":
							case "<source>":
								m1 = matches[i + 1] || "";
								m2 = matches[i + 2] || "";
								m3 = m.substr(1);
								r = "<(" + S + ")*" + "/(" + S + ")*" + m3;
								matches[i] = (!("</" + m3 === m1 || "</" + m3 === m2 ||
									(r = new RegExp(r)).test(m1) || r.test(m2))) ?
										m.substring(m.length - 1, -1).concat("/>") : m;
								break;
						}
					}
					(l > 0) && (args[0] = matches.join(""));
					return parseFromString(args[0], args[1]);
				});
			}
		}(DOMParser);
	@end
@*/

ie-xml5633-monkeypatch.min.js

/*@cc_on
@if (@_jscript_version >= 9)
(typeof DOMParser==="function")&&!function(t){var b="[^<]+",u="[^-]*-",n=u+"([^-]"+u+")*-",i=n+">?",s="[^]]*]([^]]+])*]+",w=s+"([^]>]"+s+")*>",j="[ \\n\\t\\r]+",v="[A-Za-z_:]|[^\\x00-\\x7F]",d="[A-Za-z0-9_:.-]|[^\\x00-\\x7F]",k="("+v+")("+d+")*",r="\"[^\"]*\"|'[^']*'",x=j+k+"("+j+"("+k+"|"+r+"))*",h="([^]\"'><]+|"+r+")*>",g="[\\n\\r\\t ]",e="[^?]*\\?+",q="\\?>|"+g+e+"([^>?]"+e+")*>",a="<(!(--"+n+">|[^-]"+h+")|\\?"+k+"("+q+"))|%"+k+";|"+j,y=x+"("+j+")?(\\[("+a+")*]("+j+")?)?>?",p="--("+i+")?|\\[CDATA\\[("+w+")?|DOCTYPE("+y+")?",f=k+"("+q+")?",m=k+"("+j+")?>?",c="\"[^<\"]*\"|'[^<']*'",z=k+"("+j+k+"("+j+")?=("+j+")?("+c+"))*("+j+")?/?>?",o="<(!("+p+")?|\\?("+f+")?|/("+m+")?|("+z+")?)",l=b+"|"+o;if((t.prototype.parseFromString+"").indexOf("[native code]")>-1){t.prototype.parseFromString=(function(B,A){return function(){var D=arguments,C=this;return A(function(){return B.apply(C,D)},D)}})(t.prototype.parseFromString,function(G,F){var A,B,J,I,H,E=F[0].match(new RegExp(l,"g"));for(var D=0,C=!E?0:E.length;D<C;++D){switch(B=E[D]){case"<area>":case"<base>":case"<br>":case"<col>":case"<command>":case"<embed>":case"<hr>":case"<img>":case"<input>":case"<link>":case"<meta>":case"<param>":case"<source>":J=E[D+1]||"";I=E[D+2]||"";H=B.substr(1);A="<("+j+")*/("+j+")*"+H;E[D]=(!("</"+H===J||"</"+H===I||(A=new RegExp(A)).test(J)||A.test(I)))?B.substring(B.length-1,-1).concat("/>"):B;break}}(C>0)&&(F[0]=E.join(""));return G(F[0],F[1])})}}(DOMParser);
@end
@*/