topic Public Notification Search Source HTTPS only Error in ArcGIS Instant Apps Questions https://community.esri.com/t5/arcgis-instant-apps-questions/public-notification-search-source-https-only-error/m-p/1671775#M3571 <P>I was updated an existing Instant app on ArcGIS Online and now my existing&nbsp;Geocode Server REST URL is not working in the app. I also can't add any a REST URL layer to the&nbsp; search source. Everything is HTTPS and I'm still getting this error, "<SPAN><STRONG>Please enter a valid URL for a locator source. Link protocol must be HTTPS only.</STRONG>"&nbsp;</SPAN></P><P>Thoughts?</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="TownOfGlastonbury_0-1765311555338.png" style="width: 400px;"><img src="https://community.esri.com/t5/image/serverpage/image-id/145136i63E8ABE56DC00428/image-size/medium?v=v2&amp;px=400" role="button" title="TownOfGlastonbury_0-1765311555338.png" alt="TownOfGlastonbury_0-1765311555338.png" /></span></P><P>&nbsp;</P> Tue, 09 Dec 2025 20:26:41 GMT TownOfGlastonbury 2025-12-09T20:26:41Z Public Notification Search Source HTTPS only Error https://community.esri.com/t5/arcgis-instant-apps-questions/public-notification-search-source-https-only-error/m-p/1671775#M3571 <P>I was updated an existing Instant app on ArcGIS Online and now my existing&nbsp;Geocode Server REST URL is not working in the app. I also can't add any a REST URL layer to the&nbsp; search source. Everything is HTTPS and I'm still getting this error, "<SPAN><STRONG>Please enter a valid URL for a locator source. Link protocol must be HTTPS only.</STRONG>"&nbsp;</SPAN></P><P>Thoughts?</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="TownOfGlastonbury_0-1765311555338.png" style="width: 400px;"><img src="https://community.esri.com/t5/image/serverpage/image-id/145136i63E8ABE56DC00428/image-size/medium?v=v2&amp;px=400" role="button" title="TownOfGlastonbury_0-1765311555338.png" alt="TownOfGlastonbury_0-1765311555338.png" /></span></P><P>&nbsp;</P> Tue, 09 Dec 2025 20:26:41 GMT https://community.esri.com/t5/arcgis-instant-apps-questions/public-notification-search-source-https-only-error/m-p/1671775#M3571 TownOfGlastonbury 2025-12-09T20:26:41Z