Selenium cannot target div in iframe only on Chrome

I have a div with a class attribute with the value textLayer. I'm trying to get that div. Here is my code:

WebElement jsiFrame = driver.findElement(By.tagName("iframe"));
        driver.switchTo().frame(jsiFrame);
        WebElement docViewerElement = driver.find(By.classname("textLayer")

(note: this isn't exactly the code but it's more or less the functions I call)

I also have a timeout where I wait 5 seconds while requesting each element so it's not a matter of the element not existing when I query it). Selenium fails to find it, even though it's very plainly there. What's more, it only fails on Chrome, Firefox finds it without any problems.