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fix: make multilevel forms work on IE10 and IE11 #4048

Benunc opened this issue Mar 15, 2019 · 2 comments


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commented Mar 15, 2019

Bug Report

User Story

As a donor on an older browser (Internet Explorer 10 and 11), I want multilevel forms to work when switching the amount.

Current Behavior

On the latest version, the form does not work in switching the amount.

this error is in the console:

On SCRIPT1014: Invalid character
give.js (21,28016)

That appears to be highlighting a backtick ` character on line 49 of give.js

Expected Behavior

I expect it to work on ie10 and ie 11

Bug Type

  • This bug describes functionality that once worked as expected in version 2.3.1 (at least)

Steps to Reproduce

  1. Install Give on the latest version
  2. Create a form that is multilevel with either radios or buttons
  3. Load the form in IE 10 or IE 11
  4. Try to change the amount on the form


Acceptance Criteria

  • the form works in IE10 and IE 11
  • The fix does not affect newer browsers


WordPress System Info ### WordPress Environment ###

Home URL:
Site URL:
WP Version: 5.1.1
WP Multisite: –
WP Memory Limit: 256 MB
WP Debug Mode: ✔
WP Cron: ✔
Language: en_US
Permalink Structure: /%year%/%monthnum%/%day%/%postname%/
Show on Front: posts
Table Prefix Length: wp_8138bfdc07_
Table Prefix Length: 14
Table Prefix Status: Acceptable
Admin AJAX: Accessible
Registered Post Statuses: publish, future, draft, pending, private, trash, auto-draft, inherit, request-pending, request-confirmed, request-failed, request-completed, refunded, failed, revoked, cancelled, abandoned, processing, preapproval

Server Environment

Hosting Provider: DBH: localhost, SRV:
TLS Connection: Connection uses TLS 1.2
TLS Connection: Probably Okay
Server Info: Apache/2.4.38 (Unix) OpenSSL/1.0.1f
PHP Version: 7.3.3
PHP Post Max Size: 1 GB
PHP Time Limit: 30
PHP Max Input Vars: 5000
PHP Max Upload Size: 512 MB
cURL Version: 7.35.0, OpenSSL/1.0.1f - We recommend a minimum cURL version of 7.40.
SUHOSIN Installed: –
MySQL Version: 5.5.62 - We recommend a minimum MySQL version of 5.6. See: WordPress Requirements
Default Timezone is UTC: ✔
fsockopen/cURL: ✔
SoapClient: ✔
DOMDocument: ✔
gzip: ✔
GD Graphics Library: ✔
Multibyte String: ✔
Remote Post: ✔
Remote Get: ✔

Give Configuration

Give Version: 2.4.3
Give Cache: Enabled
Database Updates: All DB Updates Completed.
Database Tables: ✔ wp_8138bfdc07_give_donors - 1.0✔ wp_8138bfdc07_give_donormeta - 1.0✔ wp_8138bfdc07_give_comments - 1.0✔ wp_8138bfdc07_give_commentmeta - 1.0✔ wp_8138bfdc07_give_sessions - 1.0✔ wp_8138bfdc07_give_logs - 1.0✔ wp_8138bfdc07_give_logmeta - 1.0✔ wp_8138bfdc07_give_formmeta - 1.0✔ wp_8138bfdc07_give_sequential_ordering - 1.0✔ wp_8138bfdc07_give_donationmeta - 1.0
Give Cache: Enabled
Give Cache: ✔New Donation✔Donation ReceiptNew Offline DonationOffline Donation InstructionsNew User RegistrationUser Registration InformationDonor Note✔Email access
Upgraded From: 2.4.2
Test Mode: Enabled
Currency Code: USD
Currency Position: Before
Decimal Separator: .
Thousands Separator: ,
Success Page:
Failure Page: –
Donation History Page:
Give Forms Slug: /donations/
Enabled Payment Gateways: Test Donation, PayPal Standard
Default Payment Gateway: Test Donation
PayPal IPN Verification: Disabled
PayPal IPN Notifications: IPN received for #1626 ( 7G231521RB710244C ) on 12/28/2018 at 19:40. Status N/A
Donor Email Access: Enabled

Active Give Add-ons

Other Active Plugins

Inactive Plugins

Ben's Helper Functions: by BenUNC –
Disable Gutenberg: by Jeff Starr – 1.6
Email Cop: by Ashfame – 0.1.1
Give - AmeriCloud Payments: by AmeriCloud Solutions, Inc. – 1.3.1
Give - Gateway: by GiveWP – 1.4.5
Give - Currency Switcher: by GiveWP – 1.3.1
Give - Database HealthCheck: by WordImpress – 0.0.2
Give - Email Reports: by WordImpress – 1.1.2
Give - Fee Recovery: by GiveWP – 1.7.4
Give - Form Field Manager: by GiveWP – 1.4.1
Give - Google Analytics Donation Tracking: by GiveWP – 1.2.2
Give - MailChimp: by GiveWP – 1.4.3
Give - Manual Donations: by GiveWP – 1.4.3
Give - Mollie Gateway: by GiveWP – 1.2.1
Give - PayPal Pro Gateway: by GiveWP – 1.2.1
Give - PDF Receipts: by GiveWP – 2.3.3
Give - Per Form Gateways: by GiveWP – 1.0.2
Give - Recurring Donations: by GiveWP – 1.8.5
Give - Recurring Donations: by GiveWP – 1.8.10
Give - Stripe Gateway: by GiveWP – 2.1.6
Give - Tributes: by GiveWP – 1.5.2
Give - Zapier: by WordImpress – 1.2.1
Google Analytics for WordPress by MonsterInsights: by MonsterInsights – 7.4.2
Hello Dolly: by Matt Mullenweg – 1.6
Loco Translate: by Tim Whitlock – 2.2.0
Query Monitor: by John Blackbourn – 3.3.2
Shortcode in Menus: by Gagan Deep Singh – 3.5
User Switching: by John Blackbourn & contributors – 1.4.2
WordPress Event Ticketing: by – 3.3.2
WP Crontrol: by John Blackbourn & contributors – 1.6.2

Active MU Plugins

api-hacks.php: by –
per-form-currency.php: by –


Name: Twenty Seventeen
Version: 2.1
Author URL:
Child Theme: No – If you're modifying Give on a parent theme you didn't build personally, then we recommend using a child theme. See: How to Create a Child Theme


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commented Mar 15, 2019

@ravinderk Please look into this first thing. The backtick error suggests that babel polyfill is not working as intended. I think it may have broken in the upgrade to Webpack 4.

@mehul0810 May have some insight into Babel polyfill since he set up the setting for Give core.

Please work together to resolve.


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commented Mar 18, 2019

@ravinderk Please check the URL as per my research:

    -- This says that backticks are not supported in IE

    -- I've noticed that couple of areas we can improve the implementation of babel polyfill in Give and test it with IE whether it has any impact related to it. For example, the documentation says, babel polyfill should be implemented as a dependency, not a dev dependency.

Let me know if you have any questions.

DevinWalker added a commit that referenced this issue Mar 21, 2019

Merge pull request #4050 from impress-org/issue/4048
fix: make multilevel forms work on IE10 and IE11 #4048
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