test: add e2e tests for allowedHosts option

[snitin315]

• This is a bugfix
• This is a feature
• This is a code refactor
• This is a test update
• This is a docs update
• This is a metadata update

For Bugs and Features; did you add new tests?

Yes

Motivation / Use-Case

add e2e tests for allowedHosts option.

Breaking Changes

None

Additional Info

No

[codecov]

Codecov Report

Merging #4012 (2165a81) into master (19c77a0) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #4012   +/-   ##
=======================================
  Coverage   92.62%   92.62%           
=======================================
  Files          14       14           
  Lines        1410     1410           
  Branches      519      519           
=======================================
  Hits         1306     1306           
  Misses         96       96           
  Partials        8        8           

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[alexander-akait]

Thanks