Bug: Apache Optimizations: Activating `Enforce Canonical URLs` + Multisite Domain Mapping causes sub sites to break

[renzms]

Overview

Using the new Apache Optimizations: feature Enforce Canonical URLs in a Multisite installation with Domain Mapping is causing a bug for Sub Sites in the multisite network. Images and theme files are malfunctioning while Enforce Canonical URLs is activated.

Steps to Reproduce

• Setup a Sub Site on a clean Multisite Network
• Upgrade to/install Comet Cache Pro v160706 / v160709 for Multisite
• Upload media files
• Configure Multisite Domain Mapping
• Activate Enforce Canonical URLs under Dashboard → Comet Cache Pro → Plugin Options → Apache Optimisations

Expected Behavior

Sub Site should load and function normally like so:

Observed Behavior

Sub Site images are missing/broken, and theme files are malfunctioning.

See image below:

Temporary Fix

Do not use Enforce Canonical URLs in the mean time

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Referencing internal ticket: https://websharks.zendesk.com/agent/tickets/13367

[raamdev]

@renzms writes...

Configure Multisite Domain Mapping

Could you elaborate a little on how you configured Multisite Domain Mapping?

I'm not able to reproduce the issue you're describing here. I have multisite + domain mapping + Enforce Canonical URLs and the (domain mapped) sub-site works just fine.

[renzms]

@raamdev writes

I'm not able to reproduce the issue you're describing here. I have multisite + domain mapping + Enforce Canonical URLs and the (domain mapped) sub-site works just fine.

Fixed where the Domain Mapping plugin was and put it in the MU Folder. You are correct that it works if setup correctly.

I tried this in another way, using subdirectory site instead of subdomain, and that is where a problem seem to occur even without the Domain Mapping plugin.

Could you please try also with a subdirectory site + Enforce Canonical URLs?