Possible browser settings to strip HTML code?

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Kingcosmos - 15 Jul 2007 05:08 GMT

I have a quick question regarding IE7. I have a website that some peopel
have been reporting problems with. They are only seeing the text displayed.
No links or pictures are being displayed. Others report no errors.
I have checked on various computers myself running IE7 to verify this. The
pictures/links are simply not being displayed; if I view the source the HTML
code is actually missing!
I checked with my web host, and they verified that the site is in working
order. They suggested it could be browser settings. Is this possible?

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Leonard Grey - 15 Jul 2007 05:41 GMT

Is it a fact that HTML code you wrote has actually been removed from the
web page you created? If so you have a very serious security problem on
your hands.

On the other hand, if your viewers' security software is configured
incorrectly, it may not display anything other than text, in which case
your viewers have to check the configuration of their security software.

Internet Explorer has for many years given users the ability to not
display animation, sound and pictures, but I can't think of a good
reason that someone would make such choices. Perhaps if they had a slow
dial-up connection.

---
Leonard Grey
Errare humanum est

> I have a quick question regarding IE7. I have a website that some peopel
> have been reporting problems with. They are only seeing the text displayed.
[quoted text clipped - 4 lines]
> I checked with my web host, and they verified that the site is in working
> order. They suggested it could be browser settings. Is this possible?

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Kingcosmos - 15 Jul 2007 19:04 GMT

I could imagines settings that would keep pictures, animations, Java, etc.
from not being displayed, but on those specific computers running IE7 the
HTML code is actually missing when one views the source.
At the same time, on another computer running IE7 my website shows up fine
and the code is there. I can check the code on my website and it is there.
I am at a loss why this would happen.

As an FYI, this also happens on FireFox 2.

> Is it a fact that HTML code you wrote has actually been removed from the
> web page you created? If so you have a very serious security problem on
[quoted text clipped - 21 lines]
> > I checked with my web host, and they verified that the site is in working
> > order. They suggested it could be browser settings. Is this possible?

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Leonard Grey - 15 Jul 2007 19:40 GMT

Well it's good to hear - I think - that nobody is tampering with your
web account.

Third-party security software can block code from displaying - if so
configured - and it can due this by stripping out code on the fly.

---
Leonard Grey
Errare humanum est

> I could imagines settings that would keep pictures, animations, Java, etc.
> from not being displayed, but on those specific computers running IE7 the
[quoted text clipped - 30 lines]
>>> I checked with my web host, and they verified that the site is in working
>>> order. They suggested it could be browser settings. Is this possible?

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Robert Aldwinckle - 15 Jul 2007 19:43 GMT

>I have a quick question regarding IE7. I have a website that some peopel
> have been reporting problems with. They are only seeing the text displayed.
> No links or pictures are being displayed. Others report no errors.
> I have checked on various computers myself running IE7 to verify this.

> The pictures/links are simply not being displayed;
> if I view the source the HTML code is actually missing!
> I checked with my web host, and they verified that the site is in working
> order. They suggested it could be browser settings. Is this possible?

No. You have a third-party program which is filtering and changing the
HTTP responses before IE gets them. Software firewalls, ad scrapers,
popup stoppers are examples of such programs. If the filtering is implemented
as a relay program (e.g. software proxy) and if you're not sure what such programs
you have active you might be able to detect some using netstat -anob
(in a cmd window.)

HTH

Robert Aldwinckle
---

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Swifty - 19 Jul 2007 11:10 GMT

> No. You have a third-party program which is filtering and changing the
> HTTP responses before IE gets them.

It's very easy to determine if this is the case. Get something like wget
and fetch your webpage into a file using that. If the HTML is missing
then something between IE and your server is removing the HTML, probably
some third-party software on the PC itself. If the HTML is intact, then
it is something inside IE that is removing it.

Signature

Steve Swift
http://www.swiftys.org.uk/swifty.html
http://www.ringers.org.uk

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