(upcoming) Add "post to PublicLab.org" button to embeddable demo

[jywarren]

We should embed Image Sequencer's browser version on PublicLab.org, and have a Save button that lets people post their image as a note. Example code to test this out would be:

$('body').append('<form action="https://publiclab.org/post?legacy=true" method="post"><input type="text" name= "i" value="data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCAAQABADASIAAhEBAxEB/8QAFQABAQAAAAAAAAAAAAAAAAAAAAf/xAAUEAEAAAAAAAAAAAAAAAAAAAAA/8QAFQEBAQAAAAAAAAAAAAAAAAAABgj/xAAUEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwCdABykX//Z" /><input type="submit" /></form>')

Then press the "submit" button -- although we'd do this in JavaScript instead of course.

It might also be tested out using a small image:

https://publiclab.org/post?legacy=true&i=data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCAAQABADASIAAhEBAxEB/8QAFQABAQAAAAAAAAAAAAAAAAAAAAf/xAAUEAEAAAAAAAAAAAAAAAAAAAAA/8QAFQEBAQAAAAAAAAAAAAAAAAAABgj/xAAUEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwCdABykX//Z`

This may or may not work pending publiclab/plots2#2675

[jywarren]

GitMate.io thinks possibly related issues are #142 (Add select dropdown for some module UIs in demo), and #215 (Refine/simplify "add module" interface in demo).

[tech4GT]

@jywarren this sound awesome 👍👍

[jywarren]

This should now work because publiclab/plots2#2675 was resolved!

[jywarren]

Finally solved this, moving to: #1332