sendToSlack('An error occured in MetExploreViz! :warning:',"MetExploreViz Error","https://metexplore.toulouse.inra.fr/tmp/bug.png");
// var urlWebHook = "https://hooks.slack.com/services/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"; //the URL you get on your "incoming web hooks" page.
//
// function sendToSlack (s, theUsername, theIconUrl, attachments) {