https://community.squareup.com/t5/Archived-Discussions-Read-Only/Connect-API-v2-Invalid-postMessage-origin-https-connect-squareup/m-p/51854#M98096 <P>I use&nbsp;Square Connect API v2 in my <A href="https://github.com/mage2pro/square" target="_self">extension for Magento 2</A>.<BR />It works correctly, but recently I noticed some errors in the JavaScript console:&nbsp;«<STRONG>Invalid postMessage origin: <A href="https://connect.squareup.com" target="_blank">https://connect.squareup.com</A></STRONG>».<BR />Why is it?</P> <P>&nbsp;</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="04.png" style="width: 999px;"><img src="https://community.squareup.com/t5/image/serverpage/image-id/1298i0A0EA03CFB5C6035/image-size/large?v=v2&amp;px=999" role="button" title="04.png" alt="04.png" /></span></P> Wed, 04 Oct 2017 19:00:51 GMT Mage2PRO 2017-10-04T19:00:51Z https://community.squareup.com/t5/Archived-Discussions-Read-Only/Connect-API-v2-Invalid-postMessage-origin-https-connect-squareup/m-p/51854#M98096 <P>I use&nbsp;Square Connect API v2 in my <A href="https://github.com/mage2pro/square" target="_self">extension for Magento 2</A>.<BR />It works correctly, but recently I noticed some errors in the JavaScript console:&nbsp;«<STRONG>Invalid postMessage origin: <A href="https://connect.squareup.com" target="_blank">https://connect.squareup.com</A></STRONG>».<BR />Why is it?</P> <P>&nbsp;</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="04.png" style="width: 999px;"><img src="https://community.squareup.com/t5/image/serverpage/image-id/1298i0A0EA03CFB5C6035/image-size/large?v=v2&amp;px=999" role="button" title="04.png" alt="04.png" /></span></P> Wed, 04 Oct 2017 19:00:51 GMT https://community.squareup.com/t5/Archived-Discussions-Read-Only/Connect-API-v2-Invalid-postMessage-origin-https-connect-squareup/m-p/51854#M98096 Mage2PRO 2017-10-04T19:00:51Z