Express and ejs <%= to render a JSON

In my index.ejs I have this code:

var current_user = <%= user %>

In my node I have

app.get("/", function(req, res){
    res.locals.user = req.user

However, on the page I obtain

var current_user = [object Object]

and if I write

var current_user = <%= JSON.stringify(user) %>

I obtain:

var current_user = {&quot;__v&quot;:0,&quot;_id&quot;:&quot;50bc01938f164ee80b000001&quot;,&quot;agents&quot;:...

Is there a way to pass a JSON that will be JS readable?



Oh that was easy, don't use <%=, use <%- instead. For example:

 <%- JSON.stringify(user) %>

The first one will render in HTML, the second one will render variables (as they are, eval)



If the user can be created through API calls, <%- would leave you with serious XSS vulnerability. Possible solutions can be found here:

Pass variables to JavaScript in ExpressJS


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