修改req.url不会更新url参数（req.query）

Question

Since Google Sitemap doesn't allow & in its XML . I've escaped the url (like ' /path?a=123&b=hello ') which contains two parameters now becomes /path?a=123%26b=hello and I thought browser will automatically unescape the url back. But it's not. And Google bot is giving errors.

So I add a middleware function on top of the stack before calling the mentioned route.

app.use(function (req, res, next) {
        debug(req.url);
        req.url = unescape(req.url);
        debug(req.url);
        // This works as expected
        next();
});

But I when i perform req.query.a and req.query.b (Google bot is visiting using the escaped URL ie /path?a=123%26b=hello ), It's giving the original value ie req.query.a gives 123%26b=hello and req.query.b gives undefined and when I check req.url it is giving the unescaped url which is correct.

What do you suggest?

UPDATE:

One quick solution I could think of is (I haven't tried this but I think it will work)

// After unescaping req.url
// test.com/path?a=123&b=hello
var query = req.url.split('?')[1].split('&');
var a = query[0].split('=')[1];
var b = query[1].split('=')[1];

// It looks very dirty

Answer 1

In XML you should escape & as & :

/path?a=123&b=hello

%26 is used for the & sign within a value as you already found out.

Answer 2

Try HTML5 History API it will work :

History.pushState()