Fix: IE11 XML adds a testing namespace to the preserve attribute, resulting in invalid HTML

Allan Jardine · Allan Jardine · commit 363c2025616f · 2018-07-02T15:58:45.000+01:00
- https://datatables.net/forums/discussion/comment/133425#Comment_133425
diff --git a/js/buttons.html5.js b/js/buttons.html5.js
@@ -422,6 +422,9 @@ function _addToZip( zip, obj ) {
 
 				// Return namespace attributes to being as such
 				str = str.replace( /_dt_b_namespace_token_/g, ':' );
+
+				// Remove testing name space that IE puts into the space preserve attr
+				str = str.replace( /xmlns:NS[\d]+="" NS[\d]+:/g, '' );
 			}
 
 			// Safari, IE and Edge will put empty name space attributes onto

Original file line number	Diff line number	Diff line change
`@@ -422,6 +422,9 @@ function _addToZip( zip, obj ) {`
`422`	`422`
`423`	`423`	`// Return namespace attributes to being as such`
`424`	`424`	`str = str.replace( /_dt_b_namespace_token_/g, ':' );`
	`425`	`+`
	`426`	`+ // Remove testing name space that IE puts into the space preserve attr`
	`427`	`+ str = str.replace( /xmlns:NS[\d]+="" NS[\d]+:/g, '' );`
`425`	`428`	`}`
`426`	`429`
`427`	`430`	`// Safari, IE and Edge will put empty name space attributes onto`