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This widget adds a SubToMe button to your WordPress blog. This button allows your readers to follow your blog using their favorite applications.
If the user clicks the button, then, it will load an external iframe with JavaScript. The iframe will show the user the list of their favorite subscription tools. Once they pick one, they’re redirect to it with your blog information.
The user information is stored in the browser, but is only accessible on the domain subtome.com, which is why we have to load the iframe.
No data is ever “leaked”. The whole SubToMe code is open source. Feel free to check it out by yourself.
Credits
WordPress Widget Boilerplate, Matthias Pfefferle for his precious help, mostly with version 1.3!