Author Topic: (FP) Avast blocks HTTP POST with zip in request body  (Read 1708 times)

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Offline jeremy.j

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(FP) Avast blocks HTTP POST with zip in request body
« on: June 30, 2017, 10:34:49 AM »
I'm working on a website. The website at some point sends an ajax POST request containing a zip file in the body, on the same domain.

On a customer's computer, that POST request is blocked by Avast (disabling Avast solves the issue).

What reasons could cause Avast to block a request? As a developer, which good practices should I follow to avoid the request to be blocked?

Offline Asyn

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Re: (FP) Avast blocks HTTP POST with zip in request body
« Reply #1 on: June 30, 2017, 10:39:24 AM »
What does Avast say..? Post a screenshot.
W8.1 [x64] - Avast Free AV 23.3.8047.BC [UI.757] - Firefox ESR 102.9 [NS/uBO/PB] - Thunderbird 102.9.1
Avast-Tools: Secure Browser 109.0 - Cleanup 23.1 - SecureLine 5.18 - DriverUpdater 23.1 - CCleaner 6.01
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0

Offline jeremy.j

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Re: (FP) Avast blocks HTTP POST with zip in request body
« Reply #2 on: July 03, 2017, 06:38:50 AM »
Avast says nothing. We know it's Avast because disabling it solves the issue.

Chrome says the request has been reset.

Offline Eddy

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Re: (FP) Avast blocks HTTP POST with zip in request body
« Reply #3 on: July 03, 2017, 08:48:49 AM »
What part/shield of avast is blocking it ?