I have been playin with dynamic changes to innerHTML content and have noticed some strange behaviour with tables nested inside other elements.
For example form p /p
You can't put a <table> inside a <p>. From the HTML4 specification:
<!ELEMENT P - O (%inline;)* -- paragraph -->
[...]
It cannot contain block-level elements (including P itself).
And then if you look at what the %inline; elements are, you won't find <table> in the list.
And for HTML5, <p> can contain phrasing content:
Permitted contents
Phrasing content
And phrasing content is character data and phrasing elements, phrasing elements are:
a or em or strong or small ... meter
There's no <table> in that list.
So you're trying to insert invalid HTML and the browser is changing <p><table></table></p> into <p></p><table></table> (i.e. moving the table child up to a sibling) in order to get valid HTML.
If you give the browser invalid HTML, the browser will guess what you really mean and go with its guess.
This is because both <p> and <table> are block-level elements.
Use a container element for your table, like a <div>.
Good luck! :)