use simple if instead

Author: MichaelWest22

src/htmx.js

@@ -1481,8 +1481,9 @@ var htmx = (function() {
             // @ts-ignore if elt is template content will be valid so use as inner content
             fragment = oobElementClone.content || asParentNode(oobElementClone) // if this is not an inline swap, we use the content of the node, not the node itself
           }
-          // outerHTMLStrip swapStyle will strip wrapping tag above but do outerHTML swap of inner contents
-          swapStyle = swapStyle.replace('Strip', '')
+          if (swapStyle === 'outerHTMLStrip') {
+            swapStyle = 'outerHTML' // outerHTMLStrip will strip wrapping tag above but do outerHTML swap of inner contents
+          }
 
           const beforeSwapDetails = { shouldSwap: true, target, fragment }
           if (!triggerEvent(target, 'htmx:oobBeforeSwap', beforeSwapDetails)) return