Having trouble posting to Physics Forums

[DaveC426913]

Testing testing, one, two, three.

Having trouble posting. Seeing if it's that thread or just me.

 

[DaveC426913]

Update: It's that thread. For some reason, I can't Save any Reply.

I'll try again a little later.

 

[Frabjous]

It’s you. I just posted.

Edit: I deleted the reply.

 

[DaveC426913]

Weird. I was able to post it, as long as I only pasted about 20 words at a time, saving between each.

It was the exact same text, since I'd copied it into Notepad before Canceling the post.

 

[Frabjous]

Same issue here.

 

[Greg Bernhardt]

hmm I just replied with 600 words

 

[phinds]

hmm I just replied with 600 words

Yeah, but you're special

 

[Frabjous]

I still cannot make @DaveC426913’s post.

 

[Frabjous]

I cannot make it here either.

 

[Greg Bernhardt]

I cannot make it here either.
View attachment 340205

Try clearing your browser cache

 

[Ibix]

This seems to be a minimal example to get the error. Quote this post, switch to BBCode editor, delete the newline between "an" and "d" and this paragraph of instructions and the QUOTE tags, and try to switch back to the WYSIWYG editor. (Clearing cache did not help.)

plausible' an
d '2+2=5

 

[Frabjous]

Try clearing your browser cache

I cleared my history on safari on an ipad (17.3.1) which if not equivalent means I need instruction on how to perform such an action.

No luck.

 

[Greg Bernhardt]

hmmm feels like the content is not being accepted well. Something about the pattern of characters.

 

[Greg Bernhardt]

testing '2+2=5'

 

[Greg Bernhardt]

This seems to be a minimal example to get the error. Quote this post, switch to BBCode editor, delete the newline between "an" and "d" and this paragraph of instructions and the QUOTE tags, and try to switch back to the WYSIWYG editor. (Clearing cache did not help.)

plausible' an
d '2+2=5

testing

 

[Greg Bernhardt]

This seems to be a minimal example to get the error. Quote this post, switch to BBCode editor, delete the newline between "an" and "d" and this paragraph of instructions and the QUOTE tags, and try to switch back to the WYSIWYG editor. (Clearing cache did not help.)

plausible' and '2+2=5

 

[Frabjous]

If I copy the post and delete 5, it will post.
If I copy the post and delete ‘2+2=5’ and then rewrite it, it will post.
If I copy the post and delete everything but ‘2+2=5’, it will post.

 

[Greg Bernhardt]

oh they are ticks, ‘2+2=5’

 

[phinds]

oh they are ticks

Should we be worried about Lyme disease?

 

[Ibix]

I think Greg means that the "single quotes" that @Frabjous used in #17 are backticks, which is how that post apparently contains stuff that isn't working for the rest of us. The text causing the trouble has apostrophes.

Backticks use bytes, they do not bite.

 

[DaveC426913]

So, if I understand correctly, there was a newline character in the 2+2=5?
Yeah, that might make sense; I got the impression the culprit it was somewhere in there.

Thanks guys.

 

[mfb]

You want to post 2+2=5 and you are surprised there is an error?

Here is a shorter example that triggers the error when switching to the WYSIWYG editor or when trying to post:
' an[/color]d '1=1

It's a common pattern for SQL injection and similar attempts to do unauthorized things. If the software doesn't escape the ' properly then the first one could be interpreted as end of the content, followed by SQL code that shouldn't be there.
I added color codes to trick the forum, you can copy the pattern from my comment and it won't let you post it.

 

[DaveC426913]

Wow. I did not realize escape codes could work in a text entry field.

 

[Ibix]

So, if I understand correctly, there was a newline character in the 2+2=5?

No, I inserted a newline which let me post it. Removing the newline gets you something you can't post, unless Greg has fixed it by now. As mfb says, all the single quotes and arithmetic make the original string look a bit like an SQL injection attack (the thought did cross my mind, I agree), and the site may be rejecting it on those grounds.