Title: Getting sudden “blocked” errors
Last modified: April 7, 2026

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# Getting sudden “blocked” errors

 *  Resolved [mcmuutu](https://wordpress.org/support/users/mcmuutu/)
 * (@mcmuutu)
 * [2 months ago](https://wordpress.org/support/topic/getting-sudden-blocked-errors/)
 * Hi!
 * At one of our clients’ site there’s a suburb recycling locations map, powered
   by your plugin.
 * Recently it has begun throwing “403r Access Blocked – Referer is required by 
   tile usage policy of OpenStreetMap’s volunteer-run servers” error tiles every
   now and then. They may or may not appear and disappear by zooming in and out 
   the map.
 * Absolutely no idea where the referer should be added, how to add it and what 
   it should be consisted of. Couldn’t find anything related to this at the LeafletMap
   plugins settings.
 * Any ideas, how to fix this?
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fgetting-sudden-blocked-errors%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Contributor [hupe13](https://wordpress.org/support/users/hupe13/)
 * (@hupe13)
 * [2 months ago](https://wordpress.org/support/topic/getting-sudden-blocked-errors/#post-18873615)
 * You have as Referer-Policy “same-origin”, this is too strict. See [https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/Referrer-Policy](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/Referrer-Policy)
   and use for example in your .htaccess:
 *     ```wp-block-code
       Header set Referrer-Policy "strict-origin-when-cross-origin"
       ```
   
 * I have no idea why it works sometimes with “same-origin” and doesn’t work other
   times.
 *  Thread Starter [mcmuutu](https://wordpress.org/support/users/mcmuutu/)
 * (@mcmuutu)
 * [2 months ago](https://wordpress.org/support/topic/getting-sudden-blocked-errors/#post-18873883)
 * … and this should be set where exactly?
 *  Thread Starter [mcmuutu](https://wordpress.org/support/users/mcmuutu/)
 * (@mcmuutu)
 * [2 months ago](https://wordpress.org/support/topic/getting-sudden-blocked-errors/#post-18873889)
 * Ach, got it! Added the meta tag for the site & it got fixed.
 * Thanks!

Viewing 3 replies - 1 through 3 (of 3 total)

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 * 3 replies
 * 2 participants
 * Last reply from: [mcmuutu](https://wordpress.org/support/users/mcmuutu/)
 * Last activity: [2 months ago](https://wordpress.org/support/topic/getting-sudden-blocked-errors/#post-18873889)
 * Status: resolved