https://example.app.link/kJNbhZ1PrF?$fallback_url=https://example.com

https://example.app.link/kJNbhZ1PrF?$fallback_url=https://www.website.com/&_branch_match_id=418480444086051524

branch.init('key_live_YOUR_KEY_GOES_HERE', function(err, data) {
  console.log(err, data);
});

<div class="branch-journeys-top"></div>

<a href="#" onclick="branch.deepviewCta()">deep link</a>
<button onclick="branch.deepviewCta()">deep link</button>

var linkData = {
  campaign: String(Date.now())
};
var linkOptions = {
  make_new_link: false, // don't create a new deep link if one already exists (e.g. _branch_match_id is in the address bar)
  open_app: true  // will attempt to open the app if install (URI Scheme deep linking only - will not work with Safari)
};
branch.deepview(linkData, linkOptions, function(err, data) {
  console.log(err, data);
});

XMLHttpRequest cannot load https://api2.branch.io/v1/open. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'null' is therefore not allowed access. The response had HTTP status code 400.

branch.getBrowserFingerprintId(function(err, data) { console.log(data); });

branch.init(YOUR_BRANCH_KEY, {'nonce': 'GENERATED_NONCE_VALUE' });