Inserting a logo into a header using Stylesheet - getting HTTP Status 500 error

[Beth Wadds]

Hi, 

I've been trying to insert a logo into a header using the PDF stylesheet. 

I've looked at:

https://community.atlassian.com/t5/Confluence-questions/Insert-logo-for-PDF-export-header/qaq-p/1996630  

and 

https://community.atlassian.com/t5/Confluence-questions/How-to-insert-image-in-header-for-exporting-to-PDF/qaq-p/949260

and modified the path with my own image location. 

No matter what I try, when I click Save, I receive a HTTP Status 500 - Internal Server Error 

Here's what I enter on the PDF stylesheet:

@page
{
margin-top: 2.54cm;
margin-bottom: 2.54cm;
margin-left: 1.27cm;
margin-right: 1.27cm;

@Top-left
{
background-image: url('/download/attachments/622690402/candella_logo_desktop_1.png');
background-size: 250px 86px;
background-repeat: no-repeat;
background-position: left center;
height: 86px;
width: 250px;
}
}

This is a sample of what I receive when I click Save:

Type Exception Report

Message java.lang.IllegalArgumentException: Host name may not be null

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

java.lang.RuntimeException: java.lang.IllegalArgumentException: Host name may not be null
	com.atlassian.confluence.extra.flyingpdf.config.ConfigurePdfExportAction.ssrfCheck(ConfigurePdfExportAction.java:169)
	com.atlassian.confluence.extra.flyingpdf.config.ConfigurePdfExportAction.doEdit(ConfigurePdfExportAction.java:283)
	java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.base/java.lang.reflect.Method.invoke(Method.java:568)

[Alex Koxaras -Relational- · Accepted solution]

Hi @Beth Wadds and welcome to the community,

If you try with the full url, what response are you getting?

[Beth Wadds]

Thank you, changing the image line to the following worked.

background-image: url('https://candella.atlassian.net/wiki/download/attachments/622690402/candella_logo_desktop_1.png');

Thank you very very much!