Method acceptAlert() doesn't work in Intern/Leadfoot -

i can't understand how use acceptalert() method. doesn't work me. try accept pop-up alert 2 buttons: ok , cancel.

here piece of testing code.

querydatasource: function (kibiurl, title, description, datasource, query) {   return this.remote     .get(require.tourl(kibiurl))     .setfindtimeout(3000)     .sleep(3000)     .findbycssselector('input[ng-model="query.title"]')       .clearvalue()       .type(title)       .end()     .findbycssselector('input[ng-model="query.description"]')       .type(description)       .end()     .findbycssselector('option[label="'+ datasource +'"]')       .click()       .end()     .findbyname('sqlquery')     .findbyclassname('ace_text-input')       .type(query)       .end()     .findbyxpath('//button[@class="btn btn-success"]')       .click()       .end()     .sleep(1000)     .acceptalert()     .then(function (text) {       console.log(text);     }); } 

and following error:

>> fail: chrome on platform - query mysql datasource (3844ms) unexpectedalertopen: [post http://localhost:4444/wd/hub/session/0c7cbf33-8724-4cfd-8e9c-4434d4570dbb/element / {"using":"css selector","value":"input[ng-model=\"query.title\"]"}] unexpected alert open: {alert text : sure want overwrite mysql datasource?}   (session info: chrome=51.0.2704.106)   (driver info: chromedriver=2.21.371461 (633e689b520b25f3e264a2ede6b74ccc23cb636a),platform=linux 4.2.0-41-generic x86_64) (warning: server did not provide stacktrace information) command duration or timeout: 1 milliseconds: null build info: version: '2.53.0', revision: '35ae25b', time: '2016-03-15 17:00:58' system info: host: 'latitude-e5510', ip: '127.0.1.1', os.name: 'linux', os.arch: 'amd64', os.version: '4.2.0-41-generic', java.version: '1.8.0_91' driver info: org.openqa.selenium.chrome.chromedriver capabilities [{applicationcacheenabled=false, rotatable=false, mobileemulationenabled=false, chrome={chromedriverversion=2.21.371461 (633e689b520b25f3e264a2ede6b74ccc23cb636a), userdatadir=/tmp/.com.google.chrome.cxlvym}, takesheapsnapshot=true, databaseenable d=false, handlesalerts=true, hastouchscreen=false, version=51.0.2704.106, platform=linux, browserconnectionenabled=false, nativeevents=true, acceptsslcerts=true, locationcontextenabled=true, webstorageenabled=true, browsername=chrome, takesscreenshot=true, javascriptenabled=true, cssselectorsenabled=true}] session id: e9d5caeb7c3f4e3e0819b6b65711aa32 * element info: {using=css selector, value=input[ng-model="query.title"]}   @ runrequest  <node_modules/intern/node_modules/leadfoot/session.js:88:40>   @ <node_modules/intern/node_modules/leadfoot/session.js:109:39>   @ new promise  <node_modules/intern/node_modules/dojo/promise.ts:411:3>   @ proxiedsession._post  <node_modules/intern/node_modules/leadfoot/session.js:63:10>   @ proxiedsession.session.find  <node_modules/intern/node_modules/leadfoot/session.js:1125:15>   @ command.<anonymous>  <node_modules/intern/node_modules/leadfoot/command.js:42:36>   @ <node_modules/intern/node_modules/dojo/promise.ts:393:15>   @ run  <node_modules/intern/node_modules/dojo/promise.ts:237:7>   @ <node_modules/intern/node_modules/dojo/nexttick.ts:44:3>   @ nexttickcallbackwith0args  <node.js:415:9>   @ command.find  <node_modules/intern/node_modules/leadfoot/command.js:23:10>   @ command.prototype.(anonymous function) [as findbycssselector]  <node_modules/intern/node_modules/leadfoot/lib/strategies.js:24:16>   @ datasource.querydatasource  </home/trex/development/siren/kibi-integration/tests/functional/support/page/datasource.js:53:9>   @ test.query mysql datasource [as test]  </home/trex/development/siren/kibi-integration/tests/functional/community/index.js:83:11>   @ <node_modules/intern/lib/test.js:181:24>   @ <node_modules/intern/browser_modules/dojo/promise.ts:393:15>   @ runcallbacks  <node_modules/intern/browser_modules/dojo/promise.ts:11:11>   @ <node_modules/intern/browser_modules/dojo/promise.ts:317:4>   @ run  <node_modules/intern/browser_modules/dojo/promise.ts:237:7>   @ <node_modules/intern/browser_modules/dojo/nexttick.ts:44:3> >> 1/2 tests failed >> 1/2 tests failed 

the unexpectedalertopen error means alert box opened before 1 of find calls; find call couldn't proceed because blocked modal alert dialog.

also note acceptalert works native browser alert boxes, not arbitrary framework-generated dialogs (probably not relevant here, keep in mind).