thanks @jan_blaha , that did the trick

@jan_blaha , I'm helping @AB-D to resolve this issue and we are not progress at the moment.

We have a custom docker image hosted in our container registry and served from an Azure app service.

This is the contents of the docker file:

FROM jsreport/jsreport:2.8.0-full
RUN npm i -d webpack@3.0.0
RUN npm i jsreport-docxtemplater@1.3.0
RUN npm i jsreport-azure-storage@1.1.1

The build logs for the rsreport-azure-stage step are as follows:

Step 4/4 : RUN npm i jsreport-azure-storage@1.1.1
---> Running in df1d8b662282
npm WARN jsreport-server@ No repository field.
npm WARN jsreport-server@ No license field.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.13 (node_modules/watchpack-chokidar2/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@2.1.3 (node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@2.1.3: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})

• jsreport-azure-storage@1.1.1
  updated 1 package and audited 1556 packages in 9.325s

and finally, the container log

2020-06-17T01:55:18.859373357Z 2020-06-17T01:55:18.858Z - error: Error during processing request at https://x20-reports-us.azurewebsites.net/api/version-control/commit, details: createBlockBlobFromText requires the size of text to be less than 64MB. Please use createBlockBlobFromLocalFile or createBlockBlobFromStream to upload large blobs., stack: RangeError: createBlockBlobFromText requires the size of text to be less than 64MB. Please use createBlockBlobFromLocalFile or createBlockBlobFromStream to upload large blobs.
2020-06-17T01:55:18.859404957Z at startUpload (/app/node_modules/jsreport-fs-store-azure-storage-persistence/node_modules/azure-storage/lib/services/blob/blobservice.core.js:4550:15)
2020-06-17T01:55:18.859411257Z at BlobService._uploadBlobFromText (/app/node_modules/jsreport-fs-store-azure-storage-persistence/node_modules/azure-storage/lib/services/blob/blobservice.core.js:4599:5)
2020-06-17T01:55:18.859415557Z at creationCallback (/app/node_modules/jsreport-fs-store-azure-storage-persistence/node_modules/azure-storage/lib/services/blob/blobservice.core.js:4271:12)
2020-06-17T01:55:18.859419657Z at BlobService._createBlob (/app/node_modules/jsreport-fs-store-azure-storage-persistence/node_modules/azure-storage/lib/services/blob/blobservice.core.js:5856:5)
2020-06-17T01:55:18.859423757Z at BlobService._createBlobFromText (/app/node_modules/jsreport-fs-store-azure-storage-persistence/node_modules/azure-storage/lib/services/blob/blobservice.core.js:4276:8)
2020-06-17T01:55:18.859427857Z at BlobService.createBlockBlobFromText (/app/node_modules/jsreport-fs-store-azure-storage-persistence/node_modules/azure-storage/lib/services/blob/blobservice.core.js:3208:15)
2020-06-17T01:55:18.859439258Z at BlobService.tryCatcher (/app/node_modules/bluebird/js/release/util.js:16:23)
2020-06-17T01:55:18.859443158Z at BlobService.ret [as createBlockBlobFromTextAsync] (eval at makeNodePromisifiedEval (/app/node_modules/bluebird/js/release/promisify.js:1:1), <anonymous>:12:23)
2020-06-17T01:55:18.859447158Z at Object.appendFile (/app/node_modules/jsreport-fs-store-azure-storage-persistence/lib/fileSystemAzureStorage.js:72:26)
2020-06-17T01:55:18.859450858Z at runMicrotasks (<anonymous>)
2020-06-17T01:55:18.859454558Z at processTicksAndRejections (internal/process/task_queues.js:97:5)
2020-06-17T01:55:18.859459958Z at async /app/node_modules/jsreport-fs-store/lib/provider.js:141:9
2020-06-17T01:55:18.859463658Z at async lock (/app/node_modules/jsreport-fs-store/lib/customUtils.js:145:12)

any help would be greatly appreciated.