[Plugin: Contact Form 7] ajax-loader visibility problem

Hi! I am having a problem with CF7 and the ajax-loader.gif being visible as soon as the form is shown. It still shows when the submit button is pressed as it should. I looked through the code, but it keeps displaying the loading image before submit is pressed.

Unfortunately, I don’t know much about javascript and conflicts, so any help is greatly appreciated.

Here is an example of the form: https://www.usemyideas.net/submit-design/

Also, I should note that the problem seems to only occur when I use the “file upload” field.

If you need any additional info, please let me know. Thanks!