I'm building portfolio site with Gatsby+Wordpress combination. If I run this setup locally or at Github pages everything seems to look normal when using desktop/laptop. If I visit site which is published to Github pages and view with mobile device images aren't showing at all.

I found [this solution](https://github.com/gatsbyjs/gatsby/issues/5264#issuecomment-405424852) and added it to my `gatsby-node.js` like this:

```
const _ = require(`lodash`)
const Promise = require(`bluebird`)
const path = require(`path`)
const slash = require(`slash`)

// This is the solution I found but it's not working in my case
// ----------
if (process.env.NODE_ENV === "development") {
  process.env.GATSBY_WEBPACK_PUBLICPATH = "/"
}
// ----------

exports.createPages = ({ graphql, actions }) => {
...

```

I didn't found any other solutions and it seems that I can't solve it by myself.

[Link to site](https://imlastrebor.github.io/portfolio/)

[Link to repo](https://github.com/imlastrebor/portfolio)

Hopefully I provided enough information so you can catch the idea, if not ask and I tell more. Thanks in advance!