Digital Signature disappears when opened in web browser

We have created an interactive PDF form that requires a Digital Signature that we would like to have available on our website for users to fill out. Unfortunately, the one signature form field disappears when viewed through a web browser (chrome) after we uploaded the form to our website. All other form fields are available, but the signature field is not visible nor clickable.

If the PDF form is downloaded and opened in Acrobat on a computer the signature field is available, but if done on mobile through the Acrobat App the form field disappears visually, but if you click where this field should be, the signature button does appear to fill in. 

To summarize:

• Digital Signature works correctly when downloaded and opened in Acrobat on a Computer.
• Digital Signature field not visible when downloaded and opened in Acrobat App on Mobile device.
• Digital Signature field not available or visible at all when viewed online through a Web Browser.

We are looking to have this form perform the same no matter what platform it is viewed on. I'm working in Adobe Acrobat Pro DC for Mac and finding support for this specific issue has been quite difficult. Any help to resolve this issue would be appreciated. Thank you.