Update pathProxy.ts

[smalllady]

When trying to preview an HTML file with Chinese characters in its file name, the preview may fail to display correctly.

Fixes #

[codecov]

Codecov Report

Merging #6154 (3d244f8) into main (c995988) will not change coverage.
The diff coverage is 100.00%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6154   +/-   ##
=======================================
  Coverage   73.16%   73.16%           
=======================================
  Files          30       30           
  Lines        1718     1718           
  Branches      380      380           
=======================================
  Hits         1257     1257           
  Misses        385      385           
  Partials       76       76           

Impacted Files	Coverage Δ
src/node/routes/pathProxy.ts	82.14% <100.00%> (ø)

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 2e17735...3d244f8. Read the comment docs.

[code-asher]

Thank you for finding this and the fix! Just FYI I added a test and fixed the lint error, will merge once CI passes.

[sha-shrestha]

This is now causing a regression wherein if you have a url with "/" in the query pattern (i.e. example.com/proxy/1234/foo?a=/b), it now encodes it to "example.com/proxy/1234/foo?a=%2Fb" which breaks backend process parser that expects a "/" as a query parameter.

[code-asher]

Yeah we should remove the encodeURI around the query portion I think, as it is already encoded and is getting double-encoded. #6307