Instantiation of `Agent` without parameter caused an error

[zkd8907]

• Version: found at v7.10.0
• Platform: 64-bit Windows 10/7
• Subsystem: https

When I run the code below, it causes an error: Type Error: Cannot read property 'maxCachedSessions' of undefined.

new require('https').Agent();

According to document, The parameter options of new Agent is not required. So I think the error should not be raised.

reference
An Agent object for HTTPS similar to http.Agent. See https.request() for more information. (Class: https.Agent)
new Agent([options]) (new Agent([options]))

[ryan-copperleaf]

You’re using new on require, not Agent (though new is now being made optional).

new (require('https').Agent)()
// not (new require('https')).Agent()

[zkd8907]

@ryan-copperleaf Thanks very much, I think my original understanding of new is problematic. I noticed Node 8.0.0 made an adjustment to solve the problem.