Knowledge

Mashups do not work after updrade to Qlik Sense Nov 2018 - error lowercase is not a function

Article Number: 000068301 | Last Modified: 2019/03/18

Description

After upgrading to Qlik Sense November 2018 Mashups might stop working if you have used the ngSanitize module.
The error shown is: . update.Uncaught Error: [$injector:modulerr] Failed to instantiate module qMashup due to: Error: [$injector:modulerr] Failed to instantiate module ngSanitize due to: TypeError: lowercase is not a function

Environment:
Qlik Sense November 2018 and above

Cause

We upgraded the angularJS version to 1.7, in the Qlik Sense November 2018 release which does not have a lowercase function any more. See release notes: https://help.qlik.com/en-US/sense-developer/November2018/Content/Sense_Helpsites/WhatsNew/What-is-new-developer-Nov2018.htm

Here is more insight on what changed, please see the text from the AngularJS for more info https://code.angularjs.org/1.7.0-rc.0/docs/guide/migration#migrating-from-1-6-to-1-7

Migrating from 1.6 to 1.7

AngularJS 1.7 contains bug fixes and features to AngularJS core and its external modules, some of which contain breaking changes. However, most of these address internal behavior and not APIs, and should not affect many applications. Additionally, we have removed some long-deprecated modules and APIs.

The most notable changes are:

$resource has now support for request and requestError interceptors
Several deprecated features have been removed:
- the $controllerProvider.allowGlobals() flag
- the $compileProvider.preAssignBindingsEnabled() flag
- the angular.lowercase and angular.uppercase methods
- the $cookieStore service from the ngCookies module
- the ngClick override directive and corresponding services from the ngTouch module
- the complete ngScenario module

Please note that feature development (without breaking changes) has happened in parallel on the 1.6.x branch, so 1.7 doesn't contain many new features, but you may still benefit from those features that were added (with possible BCs), bugfixes, and a few smaller performance improvements.

Angular

Due to 1daa4f, the helper functions angular.lowercase and angular.uppercase have been removed.

These functions have been deprecated since 1.5.0. They are internally used, but should not be exposed as they contain special locale handling (for Turkish) to maintain internal consistency regardless of user-set locale.

Developers should generally use the built-ins toLowerCase and toUpperCase or toLocaleLowerCase and toLocaleUpperCase for special cases.

Further, we generally discourage using the angular.x helpers in application code.

Resolution

A workaround is to implement the function pointing to the supported one e.g:

angular.lowercase = text => text.toLowerCase();

or you rework the lowercase function with the supported to toLowerCase().

Note: The information in this article is provided as is, and ongoing support on the solution is not provided by Qlik Support. https://help.qlik.com/en-US/sense-developer/November2018/Subsystems/Extensions/Content/Sense_Extensions/extensions-angular-introduction.htm states that:

Qlik support does not cover issues caused by third party libraries, for example AngularJS and jQuery.
This version of Qlik Sense is currently using AngularJS version 1.7.2. To ensure future compatibility, make sure not to use version specific functionality of AngularJS, or follow the AngularJS advices on how to upgrade your code to a new version.

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