Title: Custom fallback text in emails for galleries that require JavaScript Last modified: September 4, 2026 --- # Custom fallback text in emails for galleries that require JavaScript * [aderojas](https://wordpress.org/support/users/dresde/) * (@dresde) * [1 day, 13 hours ago](https://wordpress.org/support/topic/custom-fallback-text-in-emails-for-galleries-that-require-javascript/) * Hi all, * I have a small personal blog, and I use the default Jetpack newsletter module to send my posts to subscribers. * This week I published a post that includes a slideshow gallery (`[gallery link ="none" type="slideshow" ids=""]`), and I noticed that the email shows a fallback text “the slideshow requires JavaScript” (since my settings are in Spanish, it shows up as “El pase de diapositivas requiere JavaScript.”). * I’m trying to find a way to customize that fallback text so it’s a bit friendlier. Not just to match the tone of my writing, but because my subscribers (ie my mom) have no idea what that means. Something like “There is a cool photo gallery here but it doesn’t work on emails, visit the post [link] to see it!” would be a lot more helpful. Is there a way to customize this somewhere in Jetpack’s settings, it with a custom function in a plugin? Viewing 3 replies - 1 through 3 (of 3 total) * Plugin Contributor [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/) * (@erania-pinnera) * [1 day, 1 hour ago](https://wordpress.org/support/topic/custom-fallback-text-in-emails-for-galleries-that-require-javascript/#post-19012246) * Hi there, [@dresde](https://wordpress.org/support/users/dresde/), * If I get that correctly, you’d like to change the “slideshow requires JavaScript” message that appears in newsletter emails to something a bit more useful for your subscribers. Is that right? * At the moment, there isn’t a setting in Jetpack Newsletter to customize that specific fallback text. The message appears because the slideshow itself relies on JavaScript, which email clients don’t support, so Jetpack has to fall back to a text version in the email. * A simple workaround would be to add a short note or link near the slideshow in the post itself, for example letting readers know they can open the post on your site to view the full gallery. That way the same message will also be included in the newsletter email. * You can find more about Jetpack Newsletter customisation here: [https://jetpack.com/support/newsletter/customize-the-newsletter-experience/](https://jetpack.com/support/newsletter/customize-the-newsletter-experience/) * And more about the Slideshow block here: [https://jetpack.com/support/jetpack-blocks/slideshow-block/](https://jetpack.com/support/jetpack-blocks/slideshow-block/) * We can also pass this along as a feature request if that helps! * Thread Starter [aderojas](https://wordpress.org/support/users/dresde/) * (@dresde) * [9 hours, 53 minutes ago](https://wordpress.org/support/topic/custom-fallback-text-in-emails-for-galleries-that-require-javascript/#post-19012568) * Thanks [@erania-pinnera](https://wordpress.org/support/users/erania-pinnera/), * I feel that putting text around the slideshow block can help with the emails, but makes the post itself look a bit weird when reading directly in the browser. I’ll play around with the block code to see if I can find a nice way to do it or even show it only in certain scenarios. * Yes please, create the feature request. It doesn’t seem to me like it would require a setting in the UI (it’s too specific to give it real state there), but it could be in the short code itself: `[gallery link="none" type="slideshow" ids="" fallback ="Your custom fallback text if this can't be shown"]`. * Thread Starter [aderojas](https://wordpress.org/support/users/dresde/) * (@dresde) * [8 hours, 3 minutes ago](https://wordpress.org/support/topic/custom-fallback-text-in-emails-for-galleries-that-require-javascript/#post-19012583) * While playing around with this, I noticed the default carousel block looks similar on browser to the slide show, and seems to just put the photos in the email – can be annoying if there are dozens of photos or several galleries in the same post, but seems like a good solution for what I was looking for. * So follow up questions: - Is the carousel not using JS to add the functionality on browser? - If yes, why does it fallback to showing the photos, instead of the “you need Javascript” message? Viewing 3 replies - 1 through 3 (of 3 total) You must be [logged in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fcustom-fallback-text-in-emails-for-galleries-that-require-javascript%2F%3Foutput_format%3Dmd&locale=en_US) to reply to this topic. * ![](https://ps.w.org/jetpack/assets/icon.svg?rev=2819237) * [Jetpack - WP Security, Backup, Speed, & Growth](https://wordpress.org/plugins/jetpack/) * [Frequently Asked Questions](https://wordpress.org/plugins/jetpack/#faq) * [Support Threads](https://wordpress.org/support/plugin/jetpack/) * [Active Topics](https://wordpress.org/support/plugin/jetpack/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/jetpack/unresolved/) * [Reviews](https://wordpress.org/support/plugin/jetpack/reviews/) * 3 replies * 2 participants * Last reply from: [aderojas](https://wordpress.org/support/users/dresde/) * Last activity: [8 hours, 3 minutes ago](https://wordpress.org/support/topic/custom-fallback-text-in-emails-for-galleries-that-require-javascript/#post-19012583) * Status: not resolved