Adding a taint as prefix to payload URL does not work with DNS interactions

[blackthorne]

Interactsh version:

v1.2.0

Current Behavior:

when I add an arbitrary taint as prefix to an interactsh payload it will only work for http but not dns. So if my payload is cpjdvj4bajfald2br18gurjuymnd6gtyg.oast.site and I run dig TAINT_PREFFIX_cpjdvj4bajfald2br18gurjuymnd6gtyg.oast.site I get no hits on interactsh.

Expected Behavior:

Just like for http I expect to see a DNS interaction when using a prefix just like I would if I was browsing to http://TAINT_PREFFIX_cpjdvj4bajfald2br18gurjuymnd6gtyg.oast.site .

Steps To Reproduce:

1. run interactsh and generate a <payload>
2. run dig TAINT_PREFFIX_<payload> (or trigger a DNS request against it in your preferred way)
3. verify that no hits are recorded in interactsh

Anything else:

The same behaviour is seen on the web app ( https://app.interactsh.com ).