They left their Webpack source maps on the server [1]. Chrome automatically unpacks the source map into a directory structure in the 'sources' debug view. It's nice to see how they are building their React application.
I've previously sent them an email about this, but never got a reply back. I've just sent them an email again. Let's see what happens.
This is also the downside of this system: Blendle can create a very detailed profile of your interests and thus you. This is very sad, as Blendle isn't free, so you pay for the articles you read not only with money but also with your privacy, and with no influence on what will happen with the profile data Blendle created.
I know the group of people who is concerned about their privacy is small (or not big enough, I'd say), and this might look like paranoid whining, but in case you didn't realize this: now you do :)
Also, they have this nice feature where you can register your newspaper subscription to get unlimited access in the Blendle webapp.
The only thing that I find lacking is an Android app - the webpage is sometimes slow on my nicely spec'ed ASUS tablet and I'd like to save longer articles for offline use.
Edit: There also seem to be two apps:
https://play.google.com/store/apps/details?id=nl.blendle.app...
https://play.google.com/store/apps/details?id=com.blendle.ap...
I cannot install the first (possibly because I am not in NL).
See also: Snapchat Discover & Facebook Instant Articles.
After seeing what happened with apple and itunes/music, or amazon and kindle/ebooks, I just can't see how content makers are willing to make the same error. Letting a third party own your relationship with users never ends well.