diff --git a/src/ajax.js b/src/ajax.js
index e12139e9e..623e9fe71 100644
--- a/src/ajax.js
+++ b/src/ajax.js
@@ -42,7 +42,10 @@ var r20 = /%20/g,
 	ajaxLocation,
 
 	// Document location segments
-	ajaxLocParts;
+	ajaxLocParts,
+	
+	// Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
+	allTypes = ["*/"] + ["*"];
 
 // #8138, IE may throw an exception when accessing
 // a field from window.location if document.domain has been set
@@ -331,7 +334,7 @@ jQuery.extend({
 			html: "text/html",
 			text: "text/plain",
 			json: "application/json, text/javascript",
-			"*": "*/*"
+			"*": allTypes
 		},
 
 		contents: {
@@ -702,7 +705,7 @@ jQuery.extend({
 		jqXHR.setRequestHeader(
 			"Accept",
 			s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[0] ] ?
-				s.accepts[ s.dataTypes[0] ] + ( s.dataTypes[ 0 ] !== "*" ? ", */*; q=0.01" : "" ) :
+				s.accepts[ s.dataTypes[0] ] + ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
 				s.accepts[ "*" ]
 		);