小程序内嵌H5 页面在执行click的时候失效

确认

const saveImage = () => {...}

H5 页面地址：https://sky-test.baoyun18.com/m/short2020/sign?localPage=sign&orderId=67705665&RECORD_SETID=MS2B52D03A30056C0B5442ACA1D2CCBB9EF5075DSID&step=drAppSign&fileKey=RSBXTBTSS&oSign=79b68971642820fc146293518c9b7a60&ISEE_BIZ=012100sWuSi1gCqxwBm9CX2KitydAEL-MTcxODE5MjYzOAw6.T&roomId=2002202406241815010000010200