javascript - Messenger Extensions - FB Shared Link -


i have web page have added messenger extension sharing message messenger. have followed link follows. https://developers.facebook.com/docs/messenger-platform/webview/sharing/v2.10

the message object trying share follows:

var messagetoshare = {     "attachment": {         "type": "template",         "payload": {             "template_type": "generic",             "elements": [{                 "title": "title text",                 "image_url": "image url",                 "subtitle": "subtitle text",                 "default_action": {                     "type": "web_url",                     "url": "url"                 },                 "buttons": [{                     "type": "web_url",                     "url": "button url",                     "title": "button title"                 }]             }]         }     } }

and code share follows:

$('#share-messenger').click(function () {     messengerextensions.beginshareflow(function success(response) {             if (response.is_sent) {                 console.log("shared in messenger")             } else {                 console.log("did not share in messenger")             }         }, function error(errorcode, errormessage) {             console.log("error in sharing in messenger " + errorcode + ", " +                 errormessage)         },         messagetoshare,         "broadcast"); });

i getting error follows in above error callback when click on button.

messenger extensions not enabled - "messenger_extensions" not set on url, domain not whitelisted or outdated version of messenger client.

i went through troubleshooting guide unable understand same. there point follows.

when opening webview persistent menu or button, ensure messenger_extensions parameter set true.

which did't understand.

can explain me error or going wrong?

in messagetoshare object, need set messenger_extensions: true on button enable messenger extensions sdk in webview:

"buttons": [{   "type": "web_url",   "url": "button url",   "title": "button title",   "messenger_extension": true }]

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