Using the Commerce Ajax Cart module on a site that is also using the jQuery Update module will cause the following javascript error because the Commerce Ajax Cart module is loading ajax.js using drupal_add_js() rather than drupal_add_library().

Uncaught TypeError: Cannot read property 'prototype' of undefined (jquery_update.js:2)

This is basically the same bug reported here: Causes jquery errors when jquery_update enabled: D.ajax not found, and seems to have resurfaced in this branch.

Patch coming shortly.

Comments

mdooley created an issue. See original summary.

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mdooley CreditAttribution: mdooley commented

Update

It looks like this has already been addressed in the 7.x-1.x-dev branch, but not included in 7.x1.x-beta-3.

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mdooley CreditAttribution: mdooley commented
Status: Active » Closed (fixed)