Prevent formatting of label text in OpenLayers

Question

I have a vector layer in OpenLayers containing a few point features. Each of my features have an attribute tag which contains a short text identifying the feature.

Example:

tag: '1e-1'

Applied to my vector layer I have a point style where I specify that I want to display my tag as a label above the point:

...
new OpenLayers.Rule(
{
    symbolizer: {
        "Point": {
            label: "${tag}"
        }
    }
})
...

The problem:
My problem is that my data in this case has some very unfortunate tags, since

'1e-1'

is treated mathematically and displayed on the map as

'0.1'

Question:
Can I avoid the formatting somehow without overriding a bunch of OpenLayers objects and methods?

Answer 1

Try something like label: ${tag} + ""?

---

EDIT

So that does not work. I've been at it all day with no results. I've posted a DEMO so others can play around with to help solve this problem:

DEMO

My only other two suggestions are

1. use something like brackets as a "style" for your labels so instead of having a simple 1e-1 value, you have [1e-1] or .: 1e-1 :. like THIS.
2. Use spaces before and after the dash like this 1e - 1