I did no changes to my app code, but some update in the last couple of days to android apps caused the images shown using dataURLs for ng-src started to appear as if the link was broken.
It first manifested on my Nexus 5. At the same time, the same code was working on on my Galaxy Tab A. Then the Galaxy tab updated some apps. While it was doing so, my Ionic app auto closed. I restarted it and the images started to show as broken links there too.
As weird as this sounds, I am not able to explain it any other way due to the observations and the fact that there was no change made to the code.