Whitespaces are not correctly compared

[SimplyComple0x78]

I would expect the module to identify some xml only as equal, if their contents with text-contents and their whitespaces are really the same.
It seems that the module does ignore it, if the one XML has got some spaces somewhere and the other has got a differenz amount of spaces or none at all.

const dom = require('xmldom').DOMParser;
const xmlSerializer = require('xmldom').XMLSerializer;
const compare = require('dom-compare').compare;


const xmlA = new dom().parseFromString("<foo> </foo>");
const xmlB = new dom().parseFromString("<foo></foo>");
const xmlC = new dom().parseFromString("<foo> a</foo>");

console.log(new xmlSerializer().serializeToString(xmlA));
console.log(new xmlSerializer().serializeToString(xmlB));

const resultAB = compare(xmlA, xmlB); //empty diff, but should contain " '    ' is not ' ' "
const resultBC = compare(xmlB, xmlC); //non-empty diff, because " " is not " a" what is correct

console.log(resultAB);
console.log(resultBC);

"stripSpaces" should be false as default so I don't know what to do to achieve this.

[Olegas]

Why do you need this? What is the task?
xmlA and xmlB are the same from the XML point of view, isn't it?

[SimplyComple0x78]

Hey @Olegas,
the tool compares XML including characters, so why not space-characters? I agree that it's kind of an edge-case, but I thought "stripSpaces=false" would do exactly this.

In my use-case, I fiddle around with XML and HTML, basically rendering XML as HTML, and I use your tool in automated tests to verify whether XMLs are correct at some point.
Sadly, in the HTML-output there's a huge difference between <p>a <span>b</span></p>, which renders like a b and the variant without a space <p>a<span>b</span></p> which renders like ab.

We found the bug when looking at the broken output while the tests still passed.
Any idea on how to achieve this kind of comparison though?

Best wishes