How to programmatically load a file into a field?

Question

JavaScript

Need programmatically (Symfony 5.1 + Panther + Webdriver +

ChromeDriver ) in Google Chrome (87 version) download file in background)

<td class="formvalue">
    <span style="width: 450px">
       <input type="file" name="ctl00$uxMainContent$uxProductsImportFileListControl$uxProductsImportFileInfo$uxImportFile" id="ctl00_uxMainContent_uxProductsImportFileListControl_uxProductsImportFileInfo_uxImportFile" style="width:450px;">
       <span id="ctl00_uxMainContent_uxProductsImportFileListControl_uxProductsImportFileInfo_uxImportFileRequiredValidator" title="Needed" style="color:Red;display:none;"><span class="formerrorbox nowrap"><span class="iconformerror">Needed</span></span></span>
       </span>
 </td>

Answer 1

How to programmatically insert files into input?