function b64enc(r){return coerceToBase64Url(r,"something")}function b64RawEnc(r){return b64enc(r)}coerceToArrayBuffer=function(r,e){if("string"==typeof r){r=r.replace(/-/g,"+").replace(/_/g,"/");for(var n=window.atob(r),o=new Uint8Array(n.length),t=0;t