"Removed unsafe attribute" error for amp-bind within amp-list

[joshcp]

What's the issue?

We're seeing the console error Removed unsafe attribute: on pages using amp-bind within amp-list. It also appears that this sanitization is hammering performance on physical devices.

How do we reproduce the issue?

Example URL: https://amp.luckyvitamin.com/p-2257376-swisse-ultiboost-liver-detox-180-tablet-s

Load the example URL and view errors in the console.

What browsers are affected?

All browsers.

Which AMP version is affected?

We noted this issue in version 1901181700510 and it looks like the issue may be related to #20285 and #20397

[dreamofabear]

Thanks for the report. This is the same as #20474 and #20397.

It also appears that this sanitization is hammering performance on physical devices.

Investigating this.

[dreamofabear]

The offending release #20361 has been rolled back -- we'll patch and roll forward tomorrow. Thanks again for the report.

[joshcp]

Thanks @choumx