Fix https access by using Mozilla::CA

[snipem]

Working alternative solution as described by @vzvu3k6k in #4

[vzvu3k6k]

use Mozilla::CA; is not necessary because LWP::Protocol::https requires it implicitly when CA files are not given.

Reference: lib/LWP/Protocol/https.pm#L29

[snipem]

Can you add Mozilla::CA to some sort of dependency listing? Even if it is not mandatory to run the application when not using https.

[vzvu3k6k]

Because Mozilla::CA is one of the dependencies of LWP::Protocol::https (Makefile.PL - metacpan.org) and LWP::Protocol::https is listed on XPathFeed's cpanfile, Mozilla::CA will be installed implicitly on cpanm --installdeps . or carton install.

Should be Mozilla::CA listed explicitly on XPathFeed's cpanfile?

[snipem]

For some reason I had to install it by hand. Possibly the same reason why xpathfeed.com doesn't support it.

I think it should be listed explicitly in the cpanfile.

[vzvu3k6k]

Sorry for the late reply. I've been thinking on how to handle this problem for days.

If Mozilla::CA is not installed by cpanm --installdeps . or carton install, there appears to be something wrong. I would rather find out the reason and fix it than just add workaround.

In my environment (perl v5.20.1, cpanm (App::cpanminus) version 1.7027, carton v1.0.12), both cpanm --installdeps . and carton install successfully install Mozilla::CA.

I'd like to reproduce the problem that Mozilla::CA is not installed on my environment. Could you answer the following questions?

1. What versions of perl, cpanm and carton (if you use) are you using?
2. What exact commands did you execute to install dependencies and start app.psgi?
3. At that time, did you get any error messages? If so, what messages did you get?