look-through.js

About

Using iframes in a responsive page can be frustrating. It’s easy enough to make an iframe’s width span 100% of its container, but sizing its height is tricky — especially if the content of the iframe changes height depending on page width (for example, because of text wrapping or media queries) or events within the iframe.

look-through.js embeds and resizes an iframe responsively (width and height) within its parent container. It also bypasses the usual cross-domain issues.

Use case: The NPR Visuals team uses Pym.js to embed small custom bits of code (charts, maps, etc.) inside our CMS without CSS or JavaScript conflicts. See an example of this in action.

Development tasks

Grunt configuration is included for running common development tasks.

Javascript can be linted with jshint:

grunt jshint

Uniminified source can be regenerated with:

grunt concat

Minified source can be regenerated with:

grunt uglify

API documention can be generated with jsdoc:

grunt jsdoc

The release process is documented on the wiki.

License & Credits

Released under the MIT open source license. See LICENSE for details.

Pym.js was built by the NPR Visuals team, based on work by the NPR Tech Team and Ioseb Dzmanashvili. Thanks to Erik Hinton for suggesting the name.

Additional contributors:

• Pierre-Yves Jamon
• jugglinmike
• David Rogers
• Noah Veltman
• Andrei Scheinkman
• Thomas Wilburn
• Justin Dearing
• Chris Amico