Sudden CORS error appears

1

Hi Render community,

I have deployed the following services:

  • API developed with NestJS
  • Sales website with Nuxt 3 for general web traffic
  • Admin website with Nuxt 3 for administration
  • iPad webapp with Nuxt 3 for receiving bookings from customers
  • iPad webapp with Nuxt 3 for handling bookings by staff

They have all been deployed for 1 month and has been working.

After yesterday’s maintenance by Render, the 2 iPad webapps receive CORS errors. They did not receive any updates for a month. The API has been updated on Friday, but everything worked Saturday and even Sunday until after the maintenance.

Access to XMLHttpRequest at 'https://xxxxx' from origin 'https://yyyyy' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: It does not have HTTP ok status.

While writing this message, the CORS errors disappeared on 1 of the sites.

Can anybody help me what is going on?

2

Hi,

I’ve replied to the ticket you also opened. Let’s keep the conversation in one place (on the ticket). Then, you can update this post when we get to the solution.

Alan

3

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