URL: https://www.transbank.cl/
Browser / Version: Firefox 66.0.2
Operating System: Windows 10
Tested Another Browser: Yes
Problem type: Something else
Description: Some bank's websites do not load when making online payments
Steps to Reproduce:
In Firefox, when I try making online payments with Webpay (used by many shopping websites in Chile) I get to the page where I choose my bank and, after clicking on the "Next" button, it should redirect me to my bank's website (Banco de Chile) but it just shows a blank page.
This used to work properly, I noticed this issue for the first time on March 12 this year and the last time I was able to use this page was around March 2.
It has worked in all browsers I tried choosing a different bank (Banco Falabella) which makes me think it's a problem between Webpay, Banco de Chile using Firefox. Banco de Chile's website seems to work well in Firefox, the problem is when trying to pay with webpay.
I tried using it Edge and Opera in two different Windows PCs and both banks I tried worked well, I also tried using Firefox in two Windows PCs and in a PC that used Ubuntu and choosing Banco de Chile didn't work but Banco Falabella did.

Browser Configuration
From webcompat.com with ❤️
URL: https://www.transbank.cl/
Browser / Version: Firefox 66.0.2
Operating System: Windows 10
Tested Another Browser: Yes
Problem type: Something else
Description: Some bank's websites do not load when making online payments
Steps to Reproduce:
In Firefox, when I try making online payments with Webpay (used by many shopping websites in Chile) I get to the page where I choose my bank and, after clicking on the "Next" button, it should redirect me to my bank's website (Banco de Chile) but it just shows a blank page.
This used to work properly, I noticed this issue for the first time on March 12 this year and the last time I was able to use this page was around March 2.
It has worked in all browsers I tried choosing a different bank (Banco Falabella) which makes me think it's a problem between Webpay, Banco de Chile using Firefox. Banco de Chile's website seems to work well in Firefox, the problem is when trying to pay with webpay.
I tried using it Edge and Opera in two different Windows PCs and both banks I tried worked well, I also tried using Firefox in two Windows PCs and in a PC that used Ubuntu and choosing Banco de Chile didn't work but Banco Falabella did.

Browser Configuration
From webcompat.com with ❤️