Troubleshooting: Coupler.io refused to connect

This is a known issue related to the cookies settings of your browser or to the installed to the browser addons that are able to manage cookies. 

The error:

When you are using Coupler.io Add-on and click on the "Add" importer button or "Edit" importer button - our Wizard is opened, but shows you the message " www.coupler.io refused to connect". This issue can occur using a common browser window or in Incognito mode.

Google Chrome:

Mozilla Firefox

Microsoft Edge:

Safari:

To resolve the issue:

For proper functioning of the Coupler.io Add-on, your browser should allow usage of 3d party cookies. To change settings follow the next steps according to the browser you use:

Google Chrome:

  1. Navigate to Settings -> Privacy and Security -> Cookies and other site data.
  2. Select one of the next options:

    -   Allow all cookies - with this option Coupler.io will work in the common window of your browser and in Incognito mode also.

    -   Block third-party cookies in Incognito - with this option Coupler.io will work in the common window of your browser, but will not work in Incognito mode.

    -    Block third-party cookies - with this option you will block all 3d party cookies, so additional settings are needed for Coupler.io in "Customized behaviors" section:

    --  Scroll to the "Sites that can always use cookies" list. --  Click "Add".
    --  Paste " https://www.coupler.io".
    --  Check "Including third-party cookies on this site".
    --  Click "Add". --  Click "Add".
    --  Paste "https://docs.google.com".
    --  Check "Including third-party cookies on this site".
    --  Click "Add". As result you should have next settings:Allowance for https://www.coupler.io is needed to allow web version work.
    Allowance of https://docs.google.com is needed to allow addon work in Google Spreadsheets.
  3. Restart browser & Reopen addon.

Mozilla Firefox:

  1. Navigate to Settings -> Privacy and Security -> Enhanced Tracking Protection.
  2. Select one of the options:

    -  The " Standard" option. 
    -  The "  Custom" option with "Cross-site tracking cookies".
     The " Custom" option with "Cross-site tracking cookies, and isolate other cross-site tracking cookies"
  3. Restart browser & Reopen addon.

Microsoft Edge:

  1. Navigate to Settings -> Cookies and site permissions -> Cookies and site data
  2. Select one of the next options:

    -  Disable the " Block third-party cookies" option. -  Leave "Block third-party cookies" enabled, but all Coupler.io to the list of allowed websites:

    --  In the "Allow" block click "Add" --  Paste " https://www.coupler.io".
    --  Check "Including third-party cookies on this site".
    --  Click "Add". --  Click "Add".
    --  Paste  "https://docs.google.com".
    --  Check "Including third-party cookies on this site".
    --  Click "Add". You should get the next settings:
    Allowance for https://www.coupler.io is needed to allow web version work.
    Allowance of https://docs.google.com is needed to allow addon work in Google Spreadsheets.
  3. Restart browser & Reopen addon.

Safari:

  1. Click "Allow" in the pop-up that is visible.

If it is not enough - check your general settings. Safari does not have separate settings for 3d party cookies, only a single setting to block all or allow all:

  1. Go to Safari -> Preferences -> Privacy.
  2. Uncheck the "Block all cookies" option.
  3. Restart browser & Reopen addon.
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