iFrame width not same as parent

Hi,

Your plugin is 100% useful to me, as I needed an iFrame that adjusts to the height of the content! Works perfect! Thanks!

Just I quick question:

My parent url is this: http://gocycle.com/storegerman/
And the iframe is here: http://gocycle.com/de/test/

In the shortcode width=”100%”. Why the iFrame is narrower than the parent? Could I fix this?

Many thanks!

https://wordpress.org/plugins/auto-iframe/