在Javascript中验证图像文件（不仅仅是扩展名或MIME类型）

I am currently validating that I have an image file in Javascript using

file.type.match(/image.*/)

but this is letting through files that are malformed enough not to work in some browsers. For example, a jpg was uploaded that displays fine in Chrome but shows up as malformed in Firefox & Safari (haven't tested IE or Edge yet). I know I can do a more thorough validation in PHP with

exif_imagetype($filepath)

but I wondering if there was a more robust way than match to do it in Javascript.