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Chrome Version: 133.0.6943.141 (Official Build) (64-bit) OS: Linux

What steps will reproduce the problem?

1. Create an HTML string that is a node surrounded by text nodes (e.g. "[<b>hello</b>]")
2. Update that string so the text is nested within at least 512 <div> elements
3. Try to render the HTML in the DOM by replacing an element's contents with the created string using innerHTML

What is the expected result?

The DOM should render the nested text node between the 2 other text nodes (e.g. [hello]).

What happens instead?

The DOM renders altered HTML, moving the nested text node out from between the other text nodes (e.g. []hello).

This does not appear related to rendering since comparing the innerHTML value before and after shows the underlying HTML is different. Using the DOM API to create the nested structure does not run into hte same issue. See attached HTML file for an easy repro case. For what it's worth, I was able to repro the same issue in Firefox.

Please use hotlists and text to provide additional information.

If this is a regression (i.e., worked before), please consider using the bisect tool (https://www.chromium.org/developers/bisect-builds-py) to help us identify the root cause and more rapidly triage the issue.

For graphics-related bugs, please copy/paste the contents of the about://gpu page at the end of this report.

Upload Chrome variations which can help us investigate this issue. 1 Open Chrome. Go to chrome://version/?show-variations-cmd 2 Notice that there is a "Command-line variations" section(you might need to scroll down the page). Copy and save the value of the section to a txt file like variations.txt. 3 Upload the file to this bug as an attachment.