MktoForms2.allForms() returning empty in local dev environment

[Lukas_Meier]

hello

we have, somewhat customized marketo forms that we use via the javascript api.

now the code stopped working in local dev environment, I suspect it is related to this call:

in written words: getForm?munchkinId=MYID&... returns 403 forbidden

basically I am getting a 403 and MktoForms2.whenReady never triggers

MktoForms2.allForms() returns []

this didn't use to be like that. This used to work.

Obviously, for local development, I use a virtual host e.g. mylocaldev.local

it still works in production, and it still works in staging as well where we use a subdomain of production

maybe I got black listed because I was "spamming" marketo with my local testing?

[SanfordWhiteman]

It's not you, it's the... questionable (I'm being nice)... policies of CloudFlare when they flag traffic as not regular-end-user-ish.

In this case probably because of the Referer. Also happens when using a debugging proxy, which they seem to fingerprint using other means. It's absolutely frustrating but the policy is controlled centrally.

[Lukas_Meier]

what would you recommend? create a virtual host of the prod domain for local dev? 

e.g. myproductivedomain.com as entry in my hosts file for dev environment?

[SanfordWhiteman]

That seems reasonable. I don't like to use actual localhost anyway.

[Lukas_Meier]

is there anything that works?

if I use a different virtual host, doesn't work either

If I directly access the URL of the script e.g.

http://app-lon09.marketo.com/index.php/form/getForm?munchkinId=...

then it works

it only doesnt't work, when i load the page to fill out the form

[SanfordWhiteman]

What browser + exact version are you using? CF tends to lag behind newer User-Agents as well.

[Lukas_Meier]

Where it doesnt work:

Chrome Version 83.0.4103.61 (Official Build) (64-bit)

Where it does work:

Opera Version:69.0.3686.49

both running on lubuntu 18.04

[Lukas_Meier · Accepted solution]

it seems to work fine if I use a different browser

for example I just ran a test with opera, seems to pass and load the script

Why opera, well, they have an integrated vpn. It works without vpn activated though as well..

worked on Opera Version:69.0.3686.49 on date 2020-07-8