Strange block (Google) Options

[pandy]

For about 15 minutes I was met by this when I tried to use Google with FF - and only FF.



I decided I myself must have blocked google accidentaly and was going to ask how to find those settings since I couldn't, but then it resolved.

What happened here? Who blocked whom and why?

[coothead]

. What happened here?

You probably just had A goblin in the works experience.

The little buggers come out to play when one least expects them.

coothead

[Christian J]

ISTR that message is generated when the browser refuses to load what it thinks is a Cross-origin violation. Didn't something similar happen when trying to run Ajax (or some other JS) in HTML files on your local file system?

[pandy]

Nope. Wasn't me. Never done anything with Ajax as I can recall.

Anyway, it happened again and now it lasted longer. Don't know how long because I went out and it's OK again now, but longer than the first time.

[Christian J]

Nope. Wasn't me. Never done anything with Ajax as I can recall.

Not you, I just recalled seeing the same message long time ago.

Anyway, it happened again and now it lasted longer. Don't know how long because I went out and it's OK again now, but longer than the first time.

Any browser extension that might be interfering?

[coothead]

Those who ignore gremlins, do so at their own peril.

coothead

[pandy]

Any browser extension that might be interfering?

Hmm. I didn't use to have any but recently installed a few EXIF readers to try them out. Strange that it only happens with google though, whatever the reason is.

[Christian J]

The error message

Blocked Page

An error occurred during a connection to ...

seems to occur in various situations, many seem to indicate Cross-origin issues:

https://dausruddin.com/adsense-blocked-page...oubleclick-net/
https://github.com/xwiki-labs/cryptpad/issues/785
https://stackoverflow.com/questions/6497819...-policy-require
https://support.google.com/calendar/thread/...says-block-page
https://itch.io/t/2713665/downloads-dont-wo...support-enabled
https://forum.joomla.org/viewtopic.php?t=997169 (a bit down the thread)

Maybe google.com and/or some extension is using iframes or Ajax in a way Firefox disapproves of.

It could also be some hardware issue with your PC, have you tried rebooting when it happens?

[pandy]

OK. Doesn't look like anything I can control.

It could also be some hardware issue with your PC, have you tried rebooting when it happens?

No. Why? It's only FF and one single site. Strange though, when it happens it affects both searching from the address bar and going to google.com. So whatever it is must be on all google's search pages.

[Christian J]

ISTR that message is generated when the browser refuses to load what it thinks is a Cross-origin violation.

At least it doesn't seem to be about frames. Tried this in Firefox:

CODE

<iframe src="https://google.com/"></iframe>

and got this different error message:

"Firefox Can’t Open This Page

To protect your security, www.google.com will not allow Firefox to display the page if another site has embedded it. To see this page, you need to open it in a new window.

Learn more…

Report errors like this to help Mozilla identify and block malicious sites"

Now that I think of it, I also recall other cases (Ajax or JS in local files) were only reported in the Inspector, not the usual browser window.

[pandy]

Did you use the iframe in a local page? Jeez, I'm feeling overprotected.

[Christian J]

Did you use the iframe in a local page?

No, online, but I don't think browsers can tell the difference between local and online in these cases.

Maybe using my own website was a stupid idea, considering the error message says: "Report errors like this to help Mozilla identify and block malicious sites" --I hope nothing get reported automatically, then I may have blacklisted my own domain.

Jeez, I'm feeling overprotected.

I think the X-Frame-Options HTTP header (that google.com used in my test) is a good feature, since it prevents things like clickjacking. You can always open a blocked framed page in its own window...

[pandy]

Are you saying FF showed that error because if the google's X-Frame-Options header? Why would they want to block a site for that? Or are you talking about two different things?

I may have blacklisted my own domain.

😁

[Christian J]

Are you saying FF showed that error because if the google's X-Frame-Options header?

The error I quoted, yes.

Why would they want to block a site for that?

They're only blocking sites from framing other sites, to prevent fraud.

[pandy]

So Google's header wasn't part of this?

[Christian J]

Not in your case, AFAIK.