Upgrade 7.5.x to 7.8.x SSL icon problem

[Heurazio]

I run JIRA behind an IIS10 reverse proxy. Before the update (JIRA 7.5.x) all was fine up and running with SSL. After the latest update, my SSL trust status is "degraded" (only grey, not green in chrome).

I already found out the problem is the icons of JIRA which are not served with SSL anymore.

<img src="http://jira.domain.com:443/secure/projectavatar?pid=10302&amp;avatarId=10702" title="xxx">

This is my JIRA server.xml (it worked in the previous version).

<Connector 
 port="8080" 
 proxyPort="443" 
 proxyName="jira.domain.com" 
 useBodyEncodingForURI="true" 
 redirectPort="8080" 
 protocol="HTTP/1.1" 
 minSpareThreads="25" 
 maxThreads="150" 
 maxSpareThreads="75" 
 maxHttpHeaderSize="8192" 
 enableLookups="false" 
 disableUploadTimeout="true" 
 connectionTimeout="20000" 
 acceptCount="100"
 schema="https"
 secure="true"/>

What can I do get it working again?

[Tzu Hau Chai · Accepted solution]

schema="https"

This should be scheme, not schema: https://tomcat.apache.org/tomcat-5.5-doc/config/http.html

Try changing this, restart JIRA and see if it helps.

[Heurazio]

Helped, Thanks.