parameters truncated

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Hi i am trying to use an unofficial api that doesn't have cors enabled.
using corsproxy.io i can get the data from the server and process it but its not a solution since the response changes through time and corsproxy.io seems to cache the response so if i try at 6pm i get data till 6 and if i try at 7pm i still get the same data if i modify a parameter then a fresh response is recieved.

Ok so i made a local proxy and it works on some sites but not the one i want to use it with.
I find my parameters get truncated the last parameter is an end time e.g 23:59 but it is ending up as 23 missing the :59
if i take the https:// string from console log and paste in the browser the server tells me the query is invalid if i manually type :59 on the end i get a successful response.

I have tried other servers and api's and the parameters are shorter and the cors proxy works as intended.
It doesnt seem to be the length exactly of the parameters there are a few query strings that are mostly similar e.g windforecast and windactual are 2 characters different in length but the truncation of the end time is the same in both 23 not 23:59

So there has to be something about the target url that causes this truncation I was thinking maybe there is a maximum length that the TargetURL can be but with the 2 queries being slightly different lengths it shouldnt truncate at the same point.

Any suggestions this is driving me crazy.

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ok a couple of things i found, i deployed my proxy. server to a raspberry Pi and that works i think its a problem with localhost.
I discovered that the dev console in google chrome on copy url, doesnt.
I expanded the console to show the complete url and it was complete but pasting it into the chrome browser as a new tab it was 3 characters short.