HTML emails are blank?

[bobpullen]

Hi all,

Looking for a bit of guidance on how to troubleshoot this one as I'm out of ideas.

Fresh install of 1.4-rc1 and almost everything seems to be working OK, however whenever I click an HTML email in the message list, all that is displayed in the body of the message in the preview pane is a blank white frame. If I view the message source, it's all there an intact, and if I elect to display all messages in plain text I can see the raw HTML. I can't see anything of relevance in any of the Apache logs but when I check the developer console in a browser, I can see some CSS errors starting with...

Code Select Expand

Source map error: request failed with status 404
Resource URL: https://domain.tld/skins/elastic/deps/bootstrap.min.css?s=1550069270
Source Map URL: bootstrap.min.css.map

Not sure if that's a red herring or not though.

Any ideas on where I can start looking with this one? It happens whether I'm using the elastic or larry skin.

TIA.

Edit: Seems that some HTML emails do actually render, minus images though. Looks like some sort of problem displaying image content 

[bobpullen]

So, on closer inspection, it seems that the browser is electing to ignore HTML content entirely:-



Anyone seen this before? If I view source, copy the output to a text file, save and reopen it, then the HTML renders perfectly fine.

[bobpullen]

Fixed it.

I'd (roughly) followed the installation guide here, where it (incorrectly) suggests enabling a handful of PHP extensions:-

Then add extension=dom.so to the bottom of the extension block.

Removing this resolved the issue. FWIW, the two .dll extensions shouldn't be enabled either.

[syava_m]

I've upgraded today from 1.3.9 to 1.4.0 and now have the same issue Not all, but more than a half of html email are blank. And I didn't add any extensions, just replaced the files and run the DB update script through the installer. Any ideas?

[syava_m]

Any ideas? I really can't find any solution for the issue, and can't disable any php modules because of a shared hosting.

[JohnDoh]

And I didn't add any extensions, just replaced the files and run the DB update script through the installer.

Did you also run the composer updates?

[syava_m]

It's a shared hosting - no access to composer. Will try to find out if any updates available and do it manually.