Potential fix for code scanning alert no. 19: Incomplete regular expression for hostnames

[Dargon789]

Potential fix for https://github.com/Dargon789/interface/security/code-scanning/19

To fix the problem, the periods (.) in the host part of the regular expression should be escaped with \. so that each matches a literal period rather than any character. In the given snippet, the regular expression /(?:interface|beta).gateway.uniswap.org\/v1\/amplitude-proxy/ is used to intercept requests to domains like interface.gateway.uniswap.org or beta.gateway.uniswap.org. The intended match is specific subdomains leading to the gateway of uniswap.org, so escaping all the periods is the best way to ensure only these hosts are matched.

The fix is simple: replace every . in the host part (before .org) with \. so the regex becomes /^(?:interface|beta)\.gateway\.uniswap\.org\/v1\/amplitude-proxy/ (using ^ makes the match stricter, but is optional). Make this change only on line 56 in the file apps/web/src/pages/Landing/Landing.e2e.test.ts.

No additional imports are needed.

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Summary by Sourcery

Bug Fixes:

• Escape the dots in the gateway.uniswap.org regex to ensure literal period matching and prevent unintended host matches

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Project	Deployment	Preview	Comments	Updated (UTC)
interface-extension	Error			Sep 29, 2025 7:39pm

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Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Tighten the test’s route-intercept regex by escaping dots in the host pattern so it only matches the intended subdomains of gateway.uniswap.org, fixing an overbroad regex vulnerability.

Sequence diagram for stricter route interception in test

sequenceDiagram
participant Test as "Landing.e2e.test.ts"
participant Page
participant Route
Test->>Page: page.route(/(?:interface|beta)\.gateway\.uniswap\.org\/v1\/amplitude-proxy/, ...)
Page->>Route: Intercept request matching stricter regex
Route->>Route: request().postDataJSON()
Route->>Route: fetch()
Route->>Route: new Blob([requestBody]).size

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Class diagram for updated test route interception

classDiagram
class "Landing.e2e.test.ts" {
  +test('renders UK compliance banner in UK')
}
"Landing.e2e.test.ts" : +page.route(/(?:interface|beta)\.gateway\.uniswap\.org\/v1\/amplitude-proxy/, async (route) => {...})

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File-Level Changes

Change	Details	Files
Escape periods in host regex to enforce literal matches	Replaced each unescaped . with \. in the hostname portion of the regex Updated the Playwright route stub to use the escaped-regex for /v1/amplitude-proxy	apps/web/src/pages/Landing/Landing.e2e.test.ts

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