1687468 - Unable to subscribe to mailing list on wasmweekly.news while ETP Strict is enabled

Status: VERIFIED INVALID

(Web Compatibility :: Privacy: Site Reports, defect, P3)

Description

[Raul Bucata]

Attachment: xxtxxxx.gif

Environment:
Operating system: Windows 10 Pro
Firefox version: :Firefox Nightly 86.0a1 (2021-01-15)

Preconditions:
ETP Strict enabled

Steps to reproduce:

1. Navigate to https://wasmweekly.news/subscribe/
2. Type in the email address.
3. Click the “Subscribe” button and observe behavior.

Expected results:
Email subscription is performed and a notification message is displayed.

Actual results:
Email subscription is not performed and no result is returned.

Notes:
Not reproducible with ETP set to STANDARD.

Comment 1

[Tim Huang[:timhuang]]

We've blocked beautify.us7.list-manage.com in TP which causes this breakage. Actually, the email has been subscribed but it just won't show the result because the script is blocked.

Comment 2

[Raul Bucata]

The issue is still reproducible.

Tested with:

Browser / Version:Firefox Nightly 87.0a1 (2021-02-18) (64-bit)
Operating System: Windows 10 PRO x64

Comment 3

[Thomas Wisniewski [:twisniewski]]

We could possibly create a shim which listens for requests to https://beautify.us7.list-manage.com/subscribe/post-json and unblocks it, if the user is in the middle of submitting a form. The trick will be to detect whether the request is caused by a user-initiated form submission.

Comment 4

[Ciprian Georgiu, Desktop QA]

I've reproduced this issue using an affected Nightly build from 2020-04-29, with the STR from comment 0, on Windows 11. The issue is no longer reproducible on the latest Nightly 140.0a1 on Windows 11.

Comment 5

[Privacy Team Bot]

This message is auto-generated.

Enhanced Tracking Protection (ETP) exceptions have been deployed to address this issue.
We have deployed the following exceptions:

{
  "bugIds": [
    "1687468"
  ],
  "urlPattern": "*://beautify.us7.list-manage.com/*",
  "classifierFeatures": [
    "tracking-protection"
  ],
  "category": "convenience",
  "topLevelUrlPattern": "*://wasmweekly.news/*",
  "isPrivateBrowsingOnly": true,
  "filterContentBlockingCategories": [
    "standard"
  ],
  "filter_expression": "env.version|versionCompare(\"142.0a1\") < 0"
}
{
  "bugIds": [
    "1687468"
  ],
  "urlPattern": "*://beautify.us7.list-manage.com/*",
  "classifierFeatures": [
    "tracking-protection"
  ],
  "category": "convenience",
  "topLevelUrlPattern": "*://wasmweekly.news/*",
  "filter_expression": "env.version|versionCompare(\"142.0a1\") >= 0"
}

Comment 6

[Privacy Team Bot]

This message is auto-generated.

Would you please verify if the issue is resolved by the ETP exceptions? You can verify by testing in private browsing mode or in ETP-strict with exceptions enabled. Please set bug status to VERIFIED or REOPENED depending on whether this problem is still reproducible. Really appreciate your help.

Comment 7

[Raul Bucata]

I guess something has happened to the page, since I can now reproduce it in Chrome as well.