Comment 2 for bug 1687545

Confirmed, adding the flag to OpenILS/WWW/EGCatLoader.pm does the trick for much of the TPAC:

  use CGI qw(:all -utf8 -oldstyle_urls);

In Evergreen 2.10, at least, there are a lot of invocations of "use CGI":

/usr/local/share/perl/5.18.2/OpenILS/Reporter/Proxy.pm:use CGI;
/usr/local/share/perl/5.18.2/OpenILS/WWW/BadDebt.pm:use CGI;
/usr/local/share/perl/5.18.2/OpenILS/WWW/TemplateBatchBibUpdate.pm:use CGI;
/usr/local/share/perl/5.18.2/OpenILS/WWW/FlatFielder.pm:use CGI qw(:all -utf8);
/usr/local/share/perl/5.18.2/OpenILS/WWW/Exporter.pm:use CGI;
/usr/local/share/perl/5.18.2/OpenILS/WWW/EGWeb/CGI_utf8.pm:use CGI qw(:all -utf8);
/usr/local/share/perl/5.18.2/OpenILS/WWW/SuperCat/Feed.pm:use CGI;
/usr/local/share/perl/5.18.2/OpenILS/WWW/EGCatLoader.pm:use CGI qw(:all -utf8 -oldstyle_urls);
/usr/local/share/perl/5.18.2/OpenILS/WWW/XMLRPCGateway.pm:use CGI;
/usr/local/share/perl/5.18.2/OpenILS/WWW/AddedContent.pm:use CGI;
/usr/local/share/perl/5.18.2/OpenILS/WWW/Proxy.pm:use CGI;
/usr/local/share/perl/5.18.2/OpenILS/WWW/AutoSuggest.pm:use CGI qw(:all -utf8);
/usr/local/share/perl/5.18.2/OpenILS/WWW/Proxy/Authen.pm:use CGI;
/usr/local/share/perl/5.18.2/OpenILS/WWW/IDL2js.pm:use CGI;
/usr/local/share/perl/5.18.2/OpenILS/WWW/SuperCat.pm:use CGI;
/usr/local/share/perl/5.18.2/OpenILS/WWW/Vandelay.pm:use CGI;
/usr/local/share/perl/5.18.2/OpenILS/WWW/Reporter.pm:use CGI;
/usr/local/share/perl/5.18.2/OpenILS/WWW/PhoneList.pm:use CGI;
/usr/local/share/perl/5.18.2/OpenILS/WWW/Redirect.pm:use CGI ();