* Failing test for #1252
* Only delete header keys that match an HTTP verb if the value is a non-string
Co-authored-by: David Ko <david.ko@pvtmethod.com>
Co-authored-by: Jay <jasonsaayman@gmail.com>
* Adding tests to show config.url mutation
Because config.url is modified while processing the request
when the baseURL is set,
it is impossible to perform a retry with the provided config object.
Ref #1628
* Fixing url combining without modifying config.url
As config.url is not modified anymore during the request processing.
The request can safely be retried after it failed with the provided
config.
resolves#1628
In nodejs testing environment it's possible to use https://github.com/tmpvar/jsdom library to define a window object, but you still want to use node http adapter. Due to those diverse testing environmnents, I propose to test for XMLHttpRequest directly, because window global object is not a sure sign of a browser environment anymore.
Jay