fix: allow to open browser with --open-page

[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

Fixes #2993

Breaking Changes

None

Additional Info

No

[codecov]

Codecov Report

Merging #3032 (b569b5a) into master (9b6b5c1) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #3032   +/-   ##
=======================================
  Coverage   92.30%   92.30%           
=======================================
  Files          37       37           
  Lines        1261     1261           
  Branches      327      327           
=======================================
  Hits         1164     1164           
  Misses         92       92           
  Partials        5        5           

Impacted Files	Coverage Δ
lib/Server.js	94.66% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 9b6b5c1...b569b5a. Read the comment docs.

[alexander-akait]

Can we add tests?

[snitin315]

Investigating how to add one for this.

[snitin315]

/cc @alexander-akait

[alexander-akait]

Thanks