I have problem with kartik-v/yii2-export the download button does not work properly, when the dialog show is nothing to download and just redirect to Create page, my server Centos 7 64bit, no Log come from error, I use this widget also :
kartik-v/yii2-widgets
kartik-v/yii2-grid
kartik-v/yii2-mpdf
kartik-v/yii2-export
setasign/fpdi-fpdf
setasign/fpdi-tcpdf
everything i have tried for update composer (php composer.phar update) and uninstall the widgets, this problem not solved both of localhost.