Invalid html2canvas setting height

problem description

the height, of the generated canvas is configured as follows, but the actual height of the generated canvas is still the pixel height of the screen. I don"t know why

var opts = {
    logging: true, //html2canvas
    useCORS: true,//     
    height:500,  //
};

html2canvas(dom, opts).then(canvas =>{
    ...
})
Apr.07,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1be6d8e-3184d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1be6d8e-3184d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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