Title: Serving old javascript to modern browsers
Last modified: March 10, 2021

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# Serving old javascript to modern browsers

 *  [topfgartenwelt](https://wordpress.org/support/users/topfgartenwelt/)
 * (@topfgartenwelt)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/serving-old-javascript-to-modern-browsers/)
 * Since a short time I get the message in Page Speed Insights that my site is serving
   old javascript to modern browsers. The issue is linked to WP Recipe Maker. Do
   you know about this?
 * Greetings Kathrin
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fserving-old-javascript-to-modern-browsers%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 5 replies - 1 through 5 (of 5 total)

 *  Plugin Author [Brecht](https://wordpress.org/support/users/brechtvds/)
 * (@brechtvds)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/serving-old-javascript-to-modern-browsers/#post-14161078)
 * Hi Kathrin,
 * We do indeed include some JavaScript to be compatible with some older browsers(
   like Internet Explorer). The affect on page speed should be negligible, but we’ll
   make sure that warning doesn’t show up anymore in the next plugin update.
 *  Thread Starter [topfgartenwelt](https://wordpress.org/support/users/topfgartenwelt/)
 * (@topfgartenwelt)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/serving-old-javascript-to-modern-browsers/#post-14162451)
 * Hi Brecht, thanks for your reply. That would be nice if you could manage that
   there isn’t always an issue on Page Speed Insights!
 * Thank you very much!
 * Greetings Kathrin
 *  Plugin Author [Brecht](https://wordpress.org/support/users/brechtvds/)
 * (@brechtvds)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/serving-old-javascript-to-modern-browsers/#post-14172872)
 * Hi again,
 * I wanted to let you know we just released WP Recipe Maker 7.1.2 which should 
   get rid of that warning!
 *  Thread Starter [topfgartenwelt](https://wordpress.org/support/users/topfgartenwelt/)
 * (@topfgartenwelt)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/serving-old-javascript-to-modern-browsers/#post-14177619)
 * Oh, thank you very much!
 * Greetings Kathrin
 *  Thread Starter [topfgartenwelt](https://wordpress.org/support/users/topfgartenwelt/)
 * (@topfgartenwelt)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/serving-old-javascript-to-modern-browsers/#post-14177867)
 * Dear Brecht, it works great! Thank you.

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘Serving old javascript to modern browsers’ is closed to new replies.

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 * 5 replies
 * 2 participants
 * Last reply from: [topfgartenwelt](https://wordpress.org/support/users/topfgartenwelt/)
 * Last activity: [5 years, 3 months ago](https://wordpress.org/support/topic/serving-old-javascript-to-modern-browsers/#post-14177867)
 * Status: not resolved