page.waitFor is deprecated (#1290)
page.waitFor is deprecated (#1290)

page.waitFor is deprecated and should be replaces with page.waitForSelector or page.waitForTimeout

Removes warning 
waitFor is deprecated and will be removed in a future release. See https://github.com/puppeteer/puppeteer/issues/6214 for details and how to migrate your code.
garris/BackstopJS,garris/BackstopJS,garris/BackstopJS