Image URL Path on server not rendered in normal window but in Incognito it is

Question

I have an unusual problem that I can't wrap my head around and figure what is causing this and how to tackle it.

I've created a webpage that allows image uploads to the server! After the user uplaoded an image the host of the page receives an e-mail with the path to the uploaded image - really straight forward.

In the e-mail for instance a url like this is coming in.

https://www.something.com/uploads/FB_IMG_1525868856883.jpg

I can open that in Safari on Mac, I can open that in some cases in Chrome Incogntio, but it never renders in Internet Explorer or normal Chrome Window (in Incognito it does)

In the image you see something weird happening. In Incognito a different source is rendered than in a normal chrome window. (this is btw. not a caching issue)

you also see the page-title of the actual website resolved in the normal window, but not in incognito.

Why is that happening? What could cause that? is that some server setting? Some react setting I have to set?

Answer 1

I'm posting this in case someone else runs into it as well. I ran into this same issue where 500 kept happening for me and I knew it was not the extensions.

What fixed it for me:

1. Open Developer Tools in Chrome
2. Navigate to Applications Tab
3. Click "Clear Storage
4. Click Clear Site Data