Does SafariDriver support special keys in sendKeys method?

I'm trying to type lowercase text with Shift button pressed in Safari web browser, but it just ignores special keys

I've already tried running the same code in Chrome and Firefox, and it worked fine

I tried a pretty straightforward method

element.sendKeys(Keys.chord(Keys.SHIFT,"aaaaaaa"));

and also using Actions

Actions shift = new Actions(driver);
shift.keyDown(Keys.LEFT_SHIFT)
.sendKeys("aaaaaaa")
.perform();