@@ -384,6 +384,12 @@ function _renderToString(vnode, context, isSvgMode, selectValue, parent) {
384384 v = styleObjToCss ( v ) ;
385385 }
386386 break ;
387+ case 'acceptCharset' :
388+ name = 'accept-charset' ;
389+ break ;
390+ case 'httpEquiv' :
391+ name = 'http-equiv' ;
392+ break ;
387393
388394 default : {
389395 if ( isSvgMode && XLINK . test ( name ) ) {
@@ -395,6 +401,14 @@ function _renderToString(vnode, context, isSvgMode, selectValue, parent) {
395401 // `draggable` is an enumerated attribute and not Boolean. A value of `true` or `false` is mandatory
396402 // https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/draggable
397403 v += '' ;
404+ } else if ( isSvgMode ) {
405+ if ( SVG_CAMEL_CASE . test ( name ) ) {
406+ name = name === 'panose1' ? 'panose-1' : camelToKebab ( name ) ;
407+ } else if ( XML_REPLACE_REGEX . test ( name ) ) {
408+ name = name . toLowerCase ( ) . replace ( XML_REPLACE_REGEX , 'xml:' ) ;
409+ }
410+ } else if ( ! HTML_SKIP_CASE . test ( name ) ) {
411+ name = name . toLowerCase ( ) ;
398412 }
399413 }
400414 }
@@ -439,6 +453,16 @@ function _renderToString(vnode, context, isSvgMode, selectValue, parent) {
439453 return s + '>' + html + '</' + type + '>' ;
440454}
441455
456+ /**
457+ * Convert fooBar strings to foo-bar
458+ * @param {string } str
459+ */
460+ const camelToKebab = ( str ) =>
461+ str . replace ( / [ A - Z ] / g, ( c ) => '-' + c . toLowerCase ( ) ) ;
462+ 463+ const HTML_SKIP_CASE = / ^ c e l l | ^ d e f a u l t | u s e / ;
464+ const SVG_CAMEL_CASE = / ^ a c | ^ a l i | a r a b i c | b a s e l | c a p | c l i p P a t h $ | c l i p R u l e $ | c o l o r | d o m i n a n t | e n a b l e | f i l l | f l o o d | f o n t | g l y p h [ ^ R ] | h o r i z | i m a g e | l e t t e r | l i g h t i n g | m a r k e r [ ^ W U H ] | o v e r l i n e | p a n o s e | p o i n t e | p a i n t | r e n d e r i n g | s h a p e | s t o p | s t r i k e t h r o u g h | s t r o k e | t e x t [ ^ L ] | t r a n s f o r m | u n d e r l i n e | u n i c o d e | u n i t s | ^ v [ ^ i ] | ^ w | ^ x H / ;
465+ const XML_REPLACE_REGEX = / ^ x m l : ? / ;
442466const XLINK_REPLACE_REGEX = / ^ x l i n k : ? / ;
443467const SELF_CLOSING = new Set ( [
444468 'area' ,
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