Lightweight library to create XML strings from javascript?

Need to generate OpenOffice XML strings on node.js and browser environments including Chrome and IE 10/11.

It seems like writing XML would be a solved problem and a library would exist. Many people upvoted @Jason's advice to use a library not invent ones own.

On Node.js cheerio.js is great. Ok, so you have to add a couple arguments to create a node, as in var $el = cheerio(<'patternFill/>',null,null,{xmlMode:true}) but that's okay.

On the browser, you'd thing jQuery would have this. But I'm going crazy:

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  $('<patternFill') lower cases tag names on creation, so you have to use $el = jQuery.parseXML('') to keep the camel case as XML is case sensitive.

  
  


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  jQuery $el.html() lower cases tagnames and includes only the inner HTML, so you have to use $el[0].outerHTML with XMLSerializer instead

  
  


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  jQuery outerHTML isn't defined in IE 10 or IE11 (How to reliably convert XML to String in IE 10/11?)

  
  

So fine. Writing an XML string seems simple enough.

But then I have to escape quotes and such which brought me to this post, in which What characters do I need to escape in XML documents?

Then it turns out there are different kinds of quotes. What about embedded escaped quotes, such as "\"" -- do I turn that into "\"" or """? Etc.

So now it feels like I'm reinventing jQuery and cheerio. This can't be right. Is there a simple Javascript library for writing XML programmatically?