Webpack

Describe the bug
It appears the "Copy Canvas Link" on the top right side of the Canvas tab adds to the clipboard only part of the url, it only gives you the iframe part of the url but misses the main base url.

For example if I had my story on this url:
http://localhost:6006/?path=/story/example-button--large

And then I clicked on the "Copy Canvas Link" on the top right (The clipboard on th

https://github.com/jaretburkett/electron-icon-maker

We would like to avoid confusion like we have in webpack-contrib/webpack-bundle-analyzer#185

We could document statsFilename and reportFilename options allowing the use of an absolute file path like /path/to/folder so that people would know it's supported.

Let us know in this issue if you would like to contribute to this!