Replying to my own message in case it's of use to someone else:

It looks like this can be fixed by commenting out the 'target: 
"__use_router__"' lines in client/galaxy/scripts/layout/menu.js i.e.

diff --git a/client/galaxy/scripts/layout/menu.js 
b/client/galaxy/scripts/layout/menu.js
index 2dc1b41098..2d4c1db8c7 100644
--- a/client/galaxy/scripts/layout/menu.js
+++ b/client/galaxy/scripts/layout/menu.js
@@ -46,7 +46,8 @@ var Collection = Backbone.Collection.extend({
             tooltip: _l("Chain tools into workflows"),
             disabled: !Galaxy.user.id,
             url: "workflows/list",
-            target: "__use_router__"
+            //PJB remove target as it seems to break when using proxy-prefix
+            //target: "__use_router__"
         });
 
         //
@@ -61,7 +62,8 @@ var Collection = Backbone.Collection.extend({
                 {
                     title: _l("Create Visualization"),
                     url: "visualizations",
-                    target: "__use_router__"
+                    //PJB remove target as it seems to break when using 
proxy-prefix
+                    //target: "__use_router__"
                 },
                 {
                     title: _l("Interactive Environments"),

(I needed to recompile the packed Javascript afterwards by running the 
common_startup.sh script before the changes appeared in the web interface.)

This appears to fix the links to "Workflows" and "Visualisations" in the 
masthead of the main page.

HTH

Best wishes

Peter

--
Peter Briggs peter.bri...@manchester.ac.uk
Bioinformatics Core Facility University of Manchester
B.1083 Michael Smith Bldg Tel: (0161) 2751482


________________________________________
From: Peter Briggs [peter.bri...@manchester.ac.uk]
Sent: Thursday, May 16, 2019 2:01 PM
To: Ping Luo; galaxy-dev
Subject: [galaxy-dev] Re: URL prefix doesn't work properly in Galaxy v18.09

Hello Ping (and Galaxy-devs)

Did this get resolved? We are still on 18.09 and serving our production 
instance with a proxy prefix, and one of my users has hit this issue when 
trying to access the "Workflows" tab from the main page.

As Ping says, it appears that Galaxy is inserting an extra copy of the prefix 
into the target URL - if the user removes this manually then the page loads 
okay.

Does anyone know, is there a fix for this in 18.09?

Thanks!

Peter

--
Peter Briggs peter.bri...@manchester.ac.uk
Bioinformatics Core Facility University of Manchester
B.1083 Michael Smith Bldg Tel: (0161) 2751482

________________________________
From: galaxy-dev [galaxy-dev-boun...@lists.galaxyproject.org] on behalf of Ping 
Luo [luop0...@gmail.com]
Sent: Monday, December 17, 2018 9:04 PM
To: galaxy-dev
Subject: [galaxy-dev] URL prefix doesn't work properly in Galaxy v18.09

I configured URL prefix in galaxy 18.09. It has problems of resolving some of 
the links, including:

     workflow
     visualize -> create visualization
     shared data -> workflows
     shared data -> visualizations

I will use workflow as an example to illustrate what happens. When the mouse 
cursor is put on workflow, the URL shown in at the left bottom of the browser 
shows

     https://xxx.xxx.tamu.edu/galaxy/workflows/list

But after I clicked 'workflow', the real URL shown in the address bar is 
actually

    
https://xxx.xxxx.tamu.edu/galaxy/galaxy//workflows/list?__identifer=sk0xsywiqrs

Of course, there is no such a page and the browser shows a blank page. If I 
manually remove one galaxy in the URL, the page is correctly shown.

Beside the four mentioned above, other links work fine. If galaxy is configured 
without prefix, then there is no problem.

 I also tested v18.05. With all the configuration being the same, this version 
doesn't have the problem with prefix like v18.09 does. So I think this is a bug 
in v18.09 with URL prefix.

Ping
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