What steps will reproduce the problem?

[A] Test case 1 :-
https://bugs.chromium.org/p/chromedriver/issues/detail?id=915

(1) Launch Chrome through Chromedriver
(2) Navigate to the attached FileUpload.html page
(3) Upload a valid .csv file by clicking on Choose field button.
(4) Click on Submit

WebDriver driver=new ChromeDriver();
driver.get("file:///path/to/FileUpload.html");
driver.findElement(By.id("grade_file")).sendKeys("/path/to/.csv file");
driver.findElement(By.tagName("form")).submit();

What is the expected output?
File should be uploaded successfully.

What do you see instead?
Error message 'Please enter a value with a valid mimetype' is displayed.

[B] Test case 2 :-
https://bugs.chromium.org/p/chromedriver/issues/detail?id=1391

(1) Launch Chrome through Chromedriver
(2) Navigate to the attached FolderUpload.html page
(3) Upload a folder (containing 1 or more than 1 files) by clicking on Choose Files button.

WebDriver driver=new ChromeDriver();
driver.get("file:///path/to/FolderUpload.html");
driver.findElement(By.id("uploadFolder")).sendKeys("/path/to/folder");

What is the expected output?
Folder should be uploaded successfully.

What do you see instead?
Folder is not uploaded. It can verified in Chrome dev console.
a) Press F12 to open dev console
b) Run command "document.getElementById('uploadFolder').files" in console.
=> It does not show the list of files of the uploaded folder.


Note - Above test cases works fine when performed manually (without chromedriver).
 

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FileUpload.html 1.0 KB View Download

Deleted: FolderUpload.html 133 bytes

FolderUpload.html 133 bytes View Download