thunderbird doesn't handle VPN changes well.
Categories
(MailNews Core :: Networking, defect)
Tracking
(Not tracked)
People
(Reporter: steve.chessin, Unassigned)
References
Details
(Keywords: regression)
Attachments
(1 file)
2.62 KB,
text/plain
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Details |
User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:76.0) Gecko/20100101 Firefox/76.0
Steps to reproduce:
Opened an email. Where it said "To protect your privacy, Thunderbird has blocked remote content in this image", from Preferences drop down I selected "Show remote content in this message".
Actual results:
Image did not display, just got the "broken image" icon.
Expected results:
The image should have displayed. Earlier versions of Thunderbird (I can't remember how far back) did display the image, because I starred a message from April 14, 2020 that had an image that I distinctly recall seeing, and today it wouldn't display. (On April 14, I was using either 68.6.0 or 68.7.0).
A command-U shows this as the image URL in the email body:
<p><img alt=3D"" src=3D"https://www.betham.org/_preview/large/uploads/Torah=
-Study/TorahStudyBlessingandKaddishdRabbanan.jpg" style=3D"width: 800px; he=
ight: 1035px;"></p>
I suspect that the HTML processor is not properly processing the "=<NL>" sequence, and maybe not even the "=3D" sequence, because if I manually construct the URL to this:
https://www.betham.org/_preview/large/uploads/Torah-Study/TorahStudyBlessingandKaddishdRabbanan.jpg
and paste it into Firefox, it displays.
This is just one example.
Reporter | ||
Comment 1•4 years ago
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Forgot to say today I'm using Thunderbird 68.8.0.
Reporter | ||
Comment 2•4 years ago
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I opened the Error Console, cleared it, selected all options (I've never used it before), and reloaded the message. I see this in the error console:
Reporter | ||
Comment 3•4 years ago
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I opened the Error Console, cleared it, selected all options (I've never used it before), and reloaded the message. I uploaded the error console. Here is a (reconstructed) portion:
Request URL: https://www.betham.org/_preview/large/uploads/Torah-Study/TorahStudyBlessingandKaddishdRabbanan.jpg
Request method: GET
Remote address: 23.217.138.110:80
Status code: 404 Not Found (?)
Version: HTTP/1.1
But 23.217.138.110 is not the IP address of www.betham.org. Using Lookup in Network Utility, I get:
23.217.138.110 -> a23-217-138-110.deploy.static.akamaitechnologies.com
and
www.betham.org -> 52.22.170.20, 52.20.111.107, 52.200.239.178
So why is Thunderbird not looking up the address properly? (Note: I've gone off and on a VPN while Thunderbird is up. I find taking Thunderbird offline while switching VPN states, then going back online, helps with its ability to store Drafts and Sent messages.)
Reporter | ||
Comment 4•4 years ago
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I'm going to try Quitting Thunderbird and restarting it and see what happens.
Reporter | ||
Comment 5•4 years ago
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I restarted Thunderbird, and now it is getting the images from the proper IP address:
Request URL: https://www.betham.org/_preview/large/uploads/Torah-Study/TorahStudyBlessingandKaddishdRabbanan.jpg
Request method: GET
Remote address: 52.22.170.20:443
Status code: 301 Moved Permanently (?)
Version: HTTP/1.1
But having to restart Thunderbird when I switch VPN states is just a workaround; Thunderbird should handle that better. (Firefox seems to have no problem with it.)
Reporter | ||
Updated•4 years ago
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Updated•4 years ago
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Reporter | ||
Comment 6•4 years ago
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I don't know if this is related, but toggling online/offline only works for Sents. If I try to Save As->Draft a message I'm writing after I've gone off of VPN, even if I start writing the message after I've first gone off of VPN and toggled offline/online and done a Get Messages, it stays in the "Copying message to Drafts folder..." state forever (until I Cancel it, of course).
Reporter | ||
Comment 7•4 years ago
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(In reply to Steve Chessin from comment #6)
I don't know if this is related, but toggling online/offline only works for Sents. If I try to Save As->Draft a message I'm writing after I've gone off of VPN, even if I start writing the message after I've first gone off of VPN and toggled offline/online and done a Get Messages, it stays in the "Copying message to Drafts folder..." state forever (until I Cancel it, of course).
I should have said that this is for a message using my employer's IMAP/SMTP server, and it resolves to a different IP address when on the VPN than when off it.
Comment 8•4 years ago
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I don't know that it will be any better, but are you able to test version 78?
Reporter | ||
Comment 9•3 years ago
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I've been working from home since the pandemic, with a different configuration (work computer always on VPN, personal computer never on VPN), so I haven't attempted to reproduce the problem.
Reporter | ||
Comment 11•3 years ago
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I'm afraid not. Still working from home. Maybe in a month or two.
Updated•9 months ago
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Reporter | ||
Comment 13•9 months ago
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Hi Wayne. I'm afraid not. Working from home has turned out to be more convenient than working from the office, so unless and until my employer demands that I work from the office, I won't be able to test the change.
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