Global $_GET parameter is broken in multisite subdirectory install

[arkimedia]

Hi,

Global $_GET parameter is not working correctly in multisite subdirectory install.

1. If I add action to init which prints contents of the global $_GET parameter, it works when I'm in the front page of the primary site. For example ​http://example.org/q=test
2. In the sub page (not sub site) like ​http://example.org/subpage/q=test I got empty array.

Many plugins like REST API are using $_GET parameters, for example to order results . All of these plugins are broken in multisite subdirectory install.

[SergeyBiryukov]

In the sub page (not sub site) like ​http://example.org/subpage/q=test I got empty array.

The correct URL would be http://example.org/subpage/?q=test (note the question mark before q).

Could you confirm that the issue still happens with the correct URL?

[arkimedia]

Yes, issue happens with the correct url, but I already found a root cause for this issue.

I was missing the $args parameter in my nginx.conf, which is required in subdirectory install.

After I changed

try_files $uri $uri/ /index.php;

to
try_files $uri $uri/ /index.php?$args;

everything is working correctly.

[SergeyBiryukov]

Thanks for the follow-up, glad you got it working.