Word - Function context.document.body.insertFileFromBase64 stopped working

[emmanuelpineda]

Without making any changes to the Add In code, the function context.document.body.insertFileFromBase64 stopped working about 2 weeks ago. I assume this is due to some Office API update.

Your Environment

• Platform: Office on the web
• Host: Word
• Office version number: Office on the web
• Operating System: Any operating system since it is office on the web
• Browser: Edge (Chromium), Google Chrome

Expected behavior

Calling the context.document.body.insertFileFromBase64(base64File, Word.InsertLocation.replace) function is expected to insert the content into the current document

Current behavior

The context.document.body.insertFileFromBase64(base64File, Word.InsertLocation.replace) function throws an error and does not insert the content

Steps to reproduce

Just call the function context.document.body.insertFileFromBase64(base64String, Word.InsertLocation.replace) from office on the web. Fails with any base 64 file string

Context

This function is useful for our learning project so that the user does not start from scratch to create a document

Useful logs

[emmanuelpineda]

Hello @xiaoyu03,

We have a new problem with the method: insertFileFromBase64, it does not throw any error but does not insert the content, it worked well in the past days and now it is not working. Please we need your help, we have a large number of users (students) who use the Jasperactive Add In and are stuck when starting this new school year.

[knopmickael]

@emmanuelpineda review your base64 string, the behavior was the same here some weeks ago, but the guys fixed it recently

The real problem was:

• if the docx used has only ONE page it starts the infinity loop when inserting it as base64 through the isnertFileFromB64 method, it does not throw any exception and doesnt import too (Word online - chrome browser)

Check this other issue, I detailed our working case (https://github.com/OfficeDev/office-js/issues/4682#issuecomment-2369243454)

[emmanuelpineda]

Thank you for the info @knopmickael!, I'll check the Word document

[xiaoyuMS]

Hi @emmanuelpineda,

May I know if the API works for you now? If not, could you share some failed samples with us to repro the issue?

[SirDavenport]

Hi @xiaoyuMS , Actually now that you mention it, the insert does not always work for me either. Just tried to insert a relatively big word document into a content control and it briefly shows the "inserting" loading spinner, and then just doesn't do anything and these errors show up

[xiaoyuMS]

@SirDavenport

This looks like a new issue. Did it continue to happen for particular insertion? If so, is it possible to provide the repro steps with us?